We need to isolate x in order to find x. However, we need to have common denominators first.


Multiply by 30 on both sides.

Divide by 5 on both sides to isolate x.
Are the 63x and the y being added or multiplied?
Answer:
(2/3)y - (8/3) = x For the first one maybe?
Step-by-step explanation:
1. y = (3/2) x + 4
y - 4 = (3/2) x
(2/3)y - (8/3) = x
2. If output is 2, f(x) = 2.
So, 2 = (3/2) x + 4
-2 = (3/2) x
-4 = 3x
x = -3/4