Can someone PLEASE give me a 7th grade algebra equation, and show me how to solve it?

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Can someone PLEASE give me a 7th grade algebra equation, and show me how to solve it?

Mathematics
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7x + 10 = 59
2x + 1 = 3 undo +1 by -1 from both sides to get balanced 2x=2 divide both sides by 2 x=1
So, you would have to go through the order of operations, and start with the... ugh

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Other answers:

i'm so stupid >:(
inverse operation + and -, x and /
we can start simpler: how about: x+3 = 5
that would be 2
you are correct, but why is it 2?
because 3- 5=2
always undo addition or subtraction first then multiplication or division...you got it!
:D so, can you give me a harder one?
almost correct :) 5 - 3 = 2
5-3 = 2
wait what did i say?
3 - 5 = -2
oops thats what i meant... that would be a negative right?
yes!
sweet
very good!
but lets step thru this easy one so you can know what is going on underneath it all. It does no good to simply go ..thats an easy one! and give the answer right?
true
P.E.M.D.A.S.
x + 3 = 5 that equal sign means that we want to keep things in balance, have you ever played on a seesaw?
yes
what happens when the kids on each end weigh the same?
one will have to push off to make them move, or else it will be balanced. and that would still be 2
correct :) now, we want to keep our equation balanced at ALL TIMES!! otherwise it becomes a lie...and lies are bad :)
yes... haha
if we want to solve for "x" we need to get it all by itself so we can ask it some personal stuff.... we need to get rid of all that stuff that is attached to it right?
yeah... so you would have to follow order of operations?
order of operations is good to know, and we will get to that sometime.. but lets take this step by step so we understand the basics that every other problem you come across will face ok?
ok. i'm sorry i suck at math :/
those are the basics just remember to use the order of operations backwards ; )
so lets look at the (x+3). its got extra stuff; it has a (+3) sticking to it right? If we could get this to be more like (x+0) that would be great right?
yes i think?
does x+0 = x?
yes
then we want x+0 :) how do we get rid of (+3) and turn it into "0"??
ummmmm.... put it in parenthises?
NO
i wish lol
WE WOULD SUBTRACT
thats correct, we would take away 3. So lets do that here: x+3-3 = 5-3 because if we take away from one side we gotta take away from the other right?
yeah. so x would equal 2?
it will....but lets see why. we get x+0 = 2 from this. And we all no that zero is pretty useless...not!! x+0 = x, and thats important to know :) so x = 2
ahhh i understand.
wait where did you get the 5?
oh no nevermind.
I dug around in the recesses of my brain and pulled it out to create a 7th grade algebra question for you lol
:D
tell me what I do with this one now: t - 4 = 3
turn the 4 into 0? i think i know the answer to this though
1?
lets turn the 4 into how? we have t - 4 .... what doe we do to turn it into t+0 ??
O.O
4 into 0 how...
oh subtract
lets try that and see if it works ok? t - 4 - 4 = 3 t - 8 = 3 .... that didnt do us much good did it? lets go back to: t - 4 = 3
ok. so would we change it to 4-3=t?
stay with me now :) do you see that t is attached to a (-4)? t-4
¿:ı
yes
a negative 4?
good, yes :)
how do we get rid of a -4?
add 4
exactly :)
lets try it out: t -4+4 = 3+4 t-0 = 7 t = 7
i think i understand that.. but why wouldn't the 3 be a negative if its... wait i'm confusing myself....
we add 4 to EACH side right? t -4+4 = 3+4 what does 3+4 =?
7....
OH
i understand
good :)
wanna try another one?
thanks you for doing this for me. and yes please
2x+8=16
you have to do the oppsite \
¿:ı
youre welcome: lets try something related, but different now. we will get to that one soon enough
ok
5x = 15
sounds good
-8 both sides
2x+8=16
ummm 5x would be like, 5• 5?
it would be the same concept as 5*5 right.
so... would you be solving for x in that equation?
2x+8=16 -8 -8 2x=8 2x/2=8/2 x=4
yes. if we add to get rid of a subtraction. And we Subtract to get rid of an addition; what do youthink we might do to get rid og a multiplier?
oh xcrap.. divide?
i hpoe this helps
divide is correct:)
2x+8=16 -8 -8 2x=8 2x/2=8/2 x=4
that one
i suck at dividing :D thanks for being patiant
do you get my eample
we dont have to know alot about division for this really; we only have to know that any number divided by itself equals 1
ok
sarhouse
why is the number 1 important to us in multiplying?
2x+8=16 -8 -8 2x=8 2x/2=8/2 x=4
yes... so.... what would we divide? 5 ÷ 5? that would =1
correct
because... its like a place holder? i have no idea
what does 1 times a number =? x * 1 = ?
5x=15 /5 /5 x=3
that would be x... just like 10 • 1= 10
you are correct :)
sarahouse i sloved it
so, the answer is.....
its sarahrose
sara1000: solving it is not the issue :)
5x = 15 you say we need to divide by 5 correct? do we do that to both sides?
and i'm kind of ignoring what you say sarah1000 nothing personal, but amistre64 is helping alot
yeah... so.... would we get rid of the x?
the x we want to keep, its gona tells us its secrets when we get it all alone :)
WOA haha XD so.. do we get rid of anything?
5x=15 /5 /5 x=3 its that easy first you do the oppsisite of mulipling 5x is divison then you divided 5 form both sides to get x by it self then you divded it and you get 3
we can remove that 5 from it by division: 5x/5 = x ok? 5x/5 = 15/5 x = 15/5 is our answer. You can reduce it some if you want, but a calculator will accept it as is ;)
15/3=3 becuase on the other side you dont have to divided it all you have to do it cross out the 5 beacuse its the same the you write x=3
what is the /?
oh a fraction?
divison
¿:ı
when typing out on a keyboard, we represent the fraction bar, which is also a division bar, by "/"
easy
ooooh
sara please im trying >:(
ok
suppose we have somethig like this to solve: 4x = 3
am try to make you understand
we would do he same thing as the first time? just, 4 times itself?
how diid you become a superhero
i taught my kids to walk by encouraging them to take baby steps :) not by pushing them down :)
we would divide by 4 that is correct :)
wow how old are you? lol not trying to be mean
older than my kids ;)
so.. (4•4)=3?
haha
we need to "divide" by 4, not multiply. remember. 4x/4 = 3/4 x = 3/4 do you see it?
amistre64
yes ¿:) i think
yes sara?
how do you make people be your fan
right next to their name it says "Become A Fan" click it
i dont make anyone be my fan..... they just like pushing little thumb buttons for all I know ;)
:)
its because you are so much better then searching the internet and only getting 1 minute free trials
Lets try another one. r/3 = 2 since this is divisiion stuck to the "r" what do we need to do?
uhhhh :ı
we got 4 option: addition subtraction multiplication and division. we already know when to add and subtract, and this doesnt look like those. we know to divide when its stuck by multiplication.....so what should we do when its stuck by division? yor best guess
multiply... and we would have to do that on both sides?
that is correct!!
sweet~! i'm sorry ill brb
sara can you become my fan
r/3 = 2 when you get back, let me know what we need to multiply both sides by :)
sara1000, since you know how to do the algebra ill be your fan ;)
ok
M IN 8 GRADE
8th grade is a pretty big accomplishment :)
ok
it takes alot of work to get out of 5... or so my daughter would have me beleive :)
where is sararose
dunno, floated off into the ether to dance with the stars i spose...
im so sorry i had to take the neighbor a cassorole dish
srarose become my fasn plz
tuna cassarole? bean cassarole? mac and cheese cassarole?
i have no idea lol. what sucks is the werent even there.
:) so, where were we... r/3 = 2 .... you say we multiply...by what?
by the 3?
sarose
plz be my fan
thats correct :) lets try it and see..... 3 * r/3 = 2 * 3 1*r = 6 r = 6 hey, it worked :)
i am your fan
ok
ok.. so 6/3=2?
makes sense
yes :)
sweet :)
all the problems your ever going to run itno, will use these 4 basic operations to solve.
ok...
with practice, youll be better at it than me :)
i doubt that! haaha are you like a teacher or something? and can u give me a harder one too?
I suppose I am an "or something" :)
haha
i just realized that this site is.. like twitter! lol
the hardest one youll come across in algebra classes will tend to be like this: 2x^2 -6x -4 = 0 and solve for x :)
¿:ı what is the ^?
its a symbol used for an exponent. if you havent seen exponents yet...yuo will :)
2^2 = 4 3^2 = 9 4^2 = 16
x^2 = x*x = x^2
i have in class.. but i'm like the dumbest one in math, and im in college level in reading! l
oh
¿:ı
lets keep these equations linear for you to practice with :)
isnt it like 3^3 would be 3 times 3 times 3?
thats right
there is another symbol used called a factorial: 4! means 1*2*3*4 6! means 1*2*3*4*5*6
is there a way to close the group chat thing? i can't friggin concintrate
oh thats weird 4! sounds like an excied 4 lol
nah, I suggested they move it somewhere else, but they seem to think its in a good spot
butbut how is that different? then just plain 4?
4 = 1+1+1+1 = 4 4^4 = 4 *4 *4 *4 = 256 4! = 1* 2 * 3 * 4 = 24
oh... so like 4+2! would still = 2?
lets see :) 4 + 2! = 4 + (1*2) = 4 + (2) = 6
but isn't 1 • 2 just going to = 2?
oops i didnt't mean = 2 i meant 6. lol
thats right. 1*2 = 2 :)
oh sweet. so, if you had 3 • 4! it would be (24•3) right
exactly :)
its just a short way for writing large numbers...thats all. 512! is easier and quicker to write than whatever number that actually equals :)
oooooooooh :D
so... what would a difficult- like 7th grade prblem be
3x -7 = 8 ; now the trick becomes knowing what to do first in this one:)
i remember it this way; first get rid of the neighbors then get rid of the spouse :)
can you use the order of operations in that?
:O thats mean lol
the order of operations are worked backwards if you want to try them, but I never do ;)
that x wants to be all alone, and the neighbors are over adding to the commotion and eating all the snscks ; so subtract them away (or add) to get rid of them
so, pemdas would be sadmep lol if you say that out loud it sounds like sad mop
oooh
it can be :) lets get rid of the neighbor in this problem, lets send it over to the other side of the street (the equal sign). 3x - 7 = 8 how do we get rid of our -7 neighbor?
we would have to add 7. so, it would be 3x (-7 + 7 = 0 ) = 8? or somthin like that?
good :) 3x -7+7 = 8+7 3x = 15 now we have a real close and personal 3 stuck to us, its wanting to cuddle, and talk about our feelings and all that bothersome stuff :) How do we send him away? 3x = 15
sense we are the only ones veiweing, if u could email me at sarah12_rose@yahoo.com and u could help me if one of us has to go? thanks :)
id rather keep it to in here, just for precations :)
what a creepy a 3 XD
IM NOT A FREAK lol i swear
lol :)
wouldnt we have to subtract again? what i dont necasarrily get is how thre isn't really an operation to do there?
i got about 5 minutes before I have to head to class..... 3x is stuck together by multiplication; its means 3 * x
ohhh
well, you can head off to lass. i dont want to keep you... haha
class*
but were almost done :) 3x = 15 ..... how to get rid of that pesky 3 ?
divide?
divide!! say it what confidence :) yes. 3x/3 = 15/3 1x = 5 x = 5 yay!!
cool! thank you so much. you have helped a ton
youre welcome :) to double check ourselves we should plug that x = 5 into our eqution and see if its true: 3x - 7 = 8 3(5) - 7 = 8 15 - 7 = 8 8 = 8 ....its good ;)
Ciao :)
the eight-grade dance committee sold 203 tickets last year and 249 tickets this year.what is thet best esimate of the percent increase of the number of tickets sold?
can you help me
see ya :)
the eight-grade dance committee sold 203 tickets last year and 249 tickets this year.what is thet best esimate of the percent increase of the number of tickets sold?
im sorry i suck at percentiges too... lol
sara1000; I have to head to class now for a few hours, illl try later ;)
what class

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