Answer:
8 years
Step-by-step explanation:
x years later type A and type B will have the same height
Type A = Type B: 10 + (8/12)*X = 6 + (14/12)*X
multiply 12 each side
120 + 8x = 72 + 14x
14x - 8x = 120 - 72
6x = 48
x = 8
check: A: 10 x 12 + 8 x 8 = 184
B: 6 x 12 + 14 x 8 = 184
