Answer:
A. 4 1/2
Explanation:
To solve this, let's isolate x
6 + (2/3)x = 9 1. Subtract by 6 on both sides
(2/3)x = 3 2. When dividing fractions, think of it as multiplying both sides by the reciprocal of the given fraction
x = (3/2)(3/1)
x = 9/2
x = 4.5