Question

Can someone please help me on this problem

Answer 1

X=4 x=4 x=4 x=4 x=4 x=4

Answer 2

Answer:

Step-by-step explanation:

Perimeter is all sides added together.

l is length, w is width, and P is perimeter.

$2l + 2w = P\\2(5x) + 2(x - 3) = 42\\10x + 2x - 6 = 42\\12x - 6 = 42\\12x = 48\\x = 4$