Question

Solve for w in P = 2w + 2l, if P = 38 and l = 12.

Answer 1

2w + 2L = P
2w = P - 2L
w = (p-2l)/2

plug in the values to get w

Answer 2

P = 2w + 2l
P = 38
l = 12

38 = 2w + 2 * 12
38 = 2w + 24
14 = 2w
7 = w

Answer 3

You are given the equation of the perimeter of a rectangle and are asked to find its width given the perimeter and the length.\[P=2w+2l\implies38=2w+2\cdot12\implies w=7.\]

Answer 4

thanks guys, you are life savers! :)