Question

I can not figure this out

Answer 1

x = 1

Explanation:

The perimeter (P) is the sum of the 3 sides

Given P = 20 , sum the 3 sides and equate to 20

4x - 2 + 4x + 5 + 4x + 5 = 20 , that is

12x + 8 = 20 ( subtract 8 from both sides )

12x = 12 ( divide both sides by 12 )

x = 1