anonymous
  • anonymous
Can someone help with 7th grade algebra? i understand, but i still need help
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
sure
anonymous
  • anonymous
thanks. variables and percentages are difficult fot me
anonymous
  • anonymous
have u got any question with u ?

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anonymous
  • anonymous
no, im sorry
anonymous
  • anonymous
Then how am I supposed to exlain...if do not have any questions
anonymous
  • anonymous
i do! can't you just make up a problem? gooses >:(
anonymous
  • anonymous
ok
anonymous
  • anonymous
thanks
anonymous
  • anonymous
x + 5 = 6 ... something like this?
anonymous
  • anonymous
yeah. that would be 1. right?
anonymous
  • anonymous
ok... we need to solve for x...for this we have to subtract anything which is on left side...in this case we have 5 ... so x +5 - 5 = 6 -5 ... u got it?
anonymous
  • anonymous
i think so?
anonymous
  • anonymous
:(
anonymous
  • anonymous
ok, so i just thought that you went like "Ok, so it is x + 5 = 6, so i can flip it around, to where it makes 6 - 5 = x, and the answer would be one" thats just how i think :/
anonymous
  • anonymous
ok so are you doing Pre-algebra? is tht wat ur school calls it?
anonymous
  • anonymous
yes.... i'm trying to get to just plain algebra too because i am really slow when it comes to math
anonymous
  • anonymous
ya same here but i rocked it when i took pre agebra all A's All year. idk why... anyways so u say u dont have a problem but im in a much bigger math class than that right now so i cant make up a problem.... so u give me one and i can help!
anonymous
  • anonymous
um ok.... say if it was like 4t - 6 = 27 ¿:ı somethin like that. i will brb i need to go make some food... it will take like one minute
anonymous
  • anonymous
ok imma rite the steps the solve that problem it EASY
anonymous
  • anonymous
k back
anonymous
  • anonymous
so the problem is 4t - 6 = 27 and ur trying to find the value of T. The first step is: 4t - 6 = 27 +6 +6 4t = 27 + 6 ^ 33 4t = 33 4 4 The fours cancel out so that t = 33 / 4 ^ t = 8.25 Get it kinda?
anonymous
  • anonymous
uh...
anonymous
  • anonymous
?
anonymous
  • anonymous
whats thr +6 +6 thinggy?
anonymous
  • anonymous
thats just a step u need to do so that you can find what t equals. Bc 4T - 6 = 27 so that to find t u have to find oh well nvm
anonymous
  • anonymous
i'm sorry
anonymous
  • anonymous
i'm stupid :/ i suck at ,ath
awhite
  • awhite
basically if you have b+2=3 and you want to solve to b, to get rid of the 2 on the right hand side of the ='s sign, you have to subtract 2 from both sides of the equation. so you have: b+2-2 = 3-2 b+0 = 3-2 = 1 so b=1
anonymous
  • anonymous
that makes some sense
awhite
  • awhite
basically whatever you do to one side of the equation, you have to also do to the other side
awhite
  • awhite
so if you have 2*a = 10 and you need to solve for a then you need to divide both sides by 2 to get rid of the 2 multiplying the a, and you end up with 2*a/2 = 10/2 = 5 so a = 5
anonymous
  • anonymous
¿:ı i understnad most of that
awhite
  • awhite
so could you solve for c in: 2*v +3 = 23 ?
awhite
  • awhite
sorry solve for v!
anonymous
  • anonymous
um yes.. so .... uhh
awhite
  • awhite
where do you think you'd start?
anonymous
  • anonymous
at the 2*v right? can you turn it around?
awhite
  • awhite
It would be easier to start by getting rid of the 3 on the right hand side.
anonymous
  • anonymous
ok. so, because it is a positive you would subtract right?
awhite
  • awhite
yep
anonymous
  • anonymous
so, 2*v +3- 3 = 23 ?
awhite
  • awhite
subtract from both sides :)
anonymous
  • anonymous
oh yeah :) 2*v +3- 3 = 23- 3 would = 20 so far right?
awhite
  • awhite
yep
anonymous
  • anonymous
k so what would you do next?
awhite
  • awhite
well then as you have 2*v = 20, you want to get rid of the 2
anonymous
  • anonymous
um would you do the same thing? but ddividing?
awhite
  • awhite
exactly. divide through on both sides.
anonymous
  • anonymous
k so... i'm sorry i suck at division. whatt would you divide by?
awhite
  • awhite
so because you want to get rid of the 2, you divide through by 2. ie: 2*v/2 = 20/2
awhite
  • awhite
does that make sense?
anonymous
  • anonymous
yes.. but why would you keep the *v ?
anonymous
  • anonymous
i'm sorry :/
awhite
  • awhite
you are solving for v, so you want to end up with v on one side, and everything else on the other side of the equation.
anonymous
  • anonymous
oh. so... you would end up with 1 right? but on the right side it would be 10.
awhite
  • awhite
yeah, because v*1 = v :) so v = 10 is the answer
anonymous
  • anonymous
sweet! thanks (:

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