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mlbach
 3 years ago
13x=7x+5
mlbach
 3 years ago
13x=7x+5

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mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0yes, i dont even know where to start!!!!

zzr0ck3r
 3 years ago
Best ResponseYou've already chosen the best response.0subtract 7x from both sides and tell me what you got

zzr0ck3r
 3 years ago
Best ResponseYou've already chosen the best response.0@rainbow dont just give answers. Please read rules.

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1\[13x=7x+5\] Subtract 7x from both sides. \[13x7x=7x7x+5\] Combine like terms \[6x=5\] Divide both sides by 6 \[x={5 \over 6}\]

zzr0ck3r
 3 years ago
Best ResponseYou've already chosen the best response.0we are not saposed to give them the answers, you should involve them in getting the answer...

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Sorry @zzr0ck3r I'll remember for next time.

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0AHHHHH..Thank you so much Phoenixfire for explaining!!!

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0how would i start this one?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Add 2/5 to both sides. What do you get?

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0im horrible at this!!! add 2/5 to 2/5 and 1/2?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Yes. type out the entire equation with 2/5 added to both sides.

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1@mlbach Did you get it?

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0no, im sorry, trying to do it on paper

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0im 38 and math is like a foreign language to me!

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1You have \[x{2 \over 5}={1 \over 2}\] So, add 2/5. You get: \[x{2 \over 5}+{2 \over 5}={1 \over 2}+{2 \over 5}\] Try solve from there.

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1You can see that the 2/5+2/5 results in 0. \[x0={1 \over 2}+{2 \over 5}\] But you got the right hand side correct.

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0ok, they cancel each other out right?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Correct! So, \[x={9 \over 10}\]

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1No problem. :) Any other problems?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1\[{2 \over 7}x=6\] Divide both sides by 2/7. The one the left will cancel and then you're left with x=??

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0how do i know that im dividing?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1\[{2 \over 7}x=6\] Divide by 2/7\[{{{2 \over 7}x} \over {2 \over 7}}={6 \over {2 \over 7}}\]

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1\[{{2 \over 7} \over {2 \over 7}}=1\] Do you understand that? Anything divided by itself is 1.

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0i just dont know how to do 6 divided by 2/7

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1So, that leave \[1x={6 \over {2 \over 7}}\] Now, a trick is to dividing by fractions: \[{a \over {b \over c}}={{c \over b}a}\] You flip the bottom fraction and multiply the top by it. Giving you: \[{6 \over {2 \over 7}}={7 \over 2}6\] Or \[{7*6} \over 2\]

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Sorry about the bad grammar.. That was truly horrible.

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0can i just put you in my pocket and and take you to class with me?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Hahaha. Yes, if you have a cell phone and internet on it. :)

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0A telephone book has white pages and yellow pages. ¾ of the book consists of the white pages; the yellow pages number 300. What is the total number of pages in the telephone book?

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0how would i start this one

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1White=3/4 of the book Yellow=1/4 of the book. So, if 1/4 of the book is 300. How many total pages are there?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Almost. Y=yellow=1/4=300 W=white=3/4=300*3 T=total=W+Y=(300*3)+300=1200

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0A theater usher at a Broadway musical finds that ½ of the patrons attending a performance are in their seats by show time. The remaining 60 people are seated after the opening number. If the show is always a complete sellout, how many seats does the theater have?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1This one is mostly a play on words. If you single out a few words: "1/2", "remaining", "sellout" From this you can see that "sellout" says all seats are taken. "remaining" means those not seated initially. "1/2" the initial people seated. So, if "half" of the attendees are seated before the show, and the "remaining" are seated after the first number. How many seats are there in the theater which is "sold out (ie all seats taken)"?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1*** "remaining 60" ***

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Getting the hang of it?

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0right now i am, but come test time, I'll draw a blank!

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0Of those invited to a wedding, 2/7 were friends of the bride. The friends of the groom numbered 65. How many people were invited to the wedding

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Haha. Of course. Nobody can avoid the blank come test time.

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0what do i look at first?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1bride=2/7 Therefore, groom=5/7=65 You can take this known number as a percentile of the total attendees. \[{5 \over 7}T=65\] Where T= the total number of people attending. Now solve for T.

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0where did you get 5/7 from?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Well if the brides guests are 2/7 of the attending people. then the grooms is the remaining guests. Correct? so 12/7 = 5/7

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1To solve for T you use the same method as one of the other problems above. The funny trick with dividing by fractions.

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1What are you stuck on?

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.05/7T=65....i get stuck on how to work the problem out

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Well you want to isolate T. Because that's the unknown variable that you want to become known. So in this case, the only way to do that is to remove the 5/7 from T. You will want to divide by 5/7 to make it cancel out, leaving T alone on the left.

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0so do i divide both sidesby 5/7?

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1Yes. Because if you change the equation on the left, you have to change it in the same way on the right for the equality to hold. 91 is correct!

mlbach
 3 years ago
Best ResponseYou've already chosen the best response.0thank you so much for your help, I appreciate it!

PhoenixFire
 3 years ago
Best ResponseYou've already chosen the best response.1No problem at all. Become a fan of me, and if you need help just send me a message.
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