Question

Please help me check my work: Solve for w
A=2L+2w
A-2L=2L+2w-2L
A-2L=2w ---Divide each side over 2
A-L=w

Where is my mistake?

Answer 1

A=2L+2W

2L+2W=A
-2L -2L

2W= A-2L
divided by 2 on both sides

w= (A-2L)/2

Answer 2

You can also right it as w= (1/2)(A-2L)

Answer 3

Makes sense now, of course, lol. Thanks!

Answer 4

I always like to switch the side around which I am solving for to the left so I follow PEMDAS