Answer: x =

Step-by-step explanation:
To solve for x, we will isolate the x variable.
Given:
10ax + 11ax = 12ax + 45
Subtract 12ax from both sides of the equation:
10ax + 11ax - 12ax = 45
Combine like terms:
9ax = 45
Divide both sides of the equation by 9a:
x =

Reduce (or simplify) the fraction:
x =
