Question

p=2(l=w) solve for l

Answer 1

l-w or l=w?

Answer 2

oops i ment (l+w)

Answer 3

Most likely minus. If that is the case, then the answer is (p+2w)/2

Answer 4

(p-2w)/2 if that is the case

Answer 5

\[p = 2\left( l + w \right)\]
\[p = 2l + 2w\]
\[p - 2w = 2l\]
\[\frac{ p-2w }{ 2 } = l\]

Answer 6

If you wish, you can explain in detail each step that I took within each step.

Answer 7

x-y=7 solve for y

Answer 8

\[x - y = 7\]
\[-y = x + 7\]
\[y = -\left( x+7 \right)\]
\[y = -x -7\]

Answer 9

thank you so much! i have more tho lol

Answer 10

Apply the same principles that I showed you with the past two problems to those. I do not wish to solve everything for you, then you don't learn anything. I can give a you a few examples to get started, but you have to understand what I did in those examples, so you can do them yourself on your homework, as well as on your test. Especially your test, as I will not be there to help you there.

Answer 11

i dont know hwo to do this problem.
-2x+5x-9=3(x-4)-5

Answer 12

I'd be glad to assist you with this one. For this, you are solving for x. I will explain each step thoroughly.

-2x + 5x - 9 = 3(x-4) - 5

First of all, you distribute everything in the parenthesis.
-2x + 5x - 9 = 3x - 12 - 5

From there, you will want to combine like terms on each side.

5x - 2x = 3x and -12 - 5 = -17 so
3x - 9 = 3x - 17

Now from here, get the constants(non-variable numbers on one side)

3x = 3x -17 + 9
3x = 3x - 8

Now it gets a bit interesting here. If you try to get all the x variables on one side, they seem to cancel each other out!

3x - 3x = -8
but 3x - 3x = 0, no?

Therefore, this question has no answer. The answer does not exist.