9514 1404 393
Answer:
x = 9
Step-by-step explanation:
The perimeter of each figure is the sum of its side lengths.
left figure perimeter = right figure perimeter
(x +3) +(x +3) +(x +3) = (x +3) +(2x -3) +(x)
3x +9 = 4x . . . . . collect terms
9 = x . . . . . . . . subtract 3x
