Question

Osvaldo’s teacher asked him to write an equivalent equation for length, l, in terms of perimeter, p, and width, w. He wrote:

Answer 1

In step 2, he had to divide both sides by 2.

Explanation:

took the prac. on edge

Answer 2

step 2

Explanation:

Given

p = 2l + 2w ( subtract 2w from both sides )

p - 2w = 2l ← correct step 1

Now, divide both sides by the multiplier 2

`(p-2w)/(2)` = l