Question

Solve for x ?????????????????

Answer 1

x = 7

Explanation:

Compare the ratios of the longer side length to the shorter side length:

8 : 10 = (3x - 9) : 15

8*(3/2) : 15 = (3x - 9) : 15

Then, form an equation.

8 * (3/2) = 3x - 9

12 = 3x - 9

21 = 3x

7 = x