Question

How do I do this???
I need to find it out, but it is comlicated

Answer 1

x=3

Explanation:

The equation for perimeter of a rectangle is 2(l)+2(w)

So, 2(x+2)+2(2x-1)=

2x+4+4x-2=20

You then combine like terms

6x+2=20, then subtract 2 from both sides

6x=18, then divide 6 by both sides

x=3