Question

One side of a rectangle is 3 inches shorter than the other side, and the perimeter is 54 inches. what are the dimensions of the rectangle.

2x + 2(x - 3) = 54
2x + 2x - 3 = 54
2x - 3 = 54

Answer 1

2x +2(x - 3) = 54

Explanation:

Answer 2

2x+2(x-3)
because each of the small sides are -3, not just one of them. the parenthesis are needed here.