Question

The perimeter of the triangle park shown on the right is 13x-9 what is the missing Length?

Answer 1

l = 7x - 5

Explanation:

l = missing length

P = sum of all lengths

P = 13x - 9 = l + (5x - 5) + (x + 1)

13x - 9 = l + 6x - 4

l = 13x - 6x -9 + 4

l = 7x - 5