Answer:
x = 3
Step-by-step explanation:
Given
- 3(x + 4) + 15 = 6 - 4x ( distribute and simplify left side )
- 3x - 12 + 15 = 6 - 4x
- 3x + 3 = 6 - 4x ( add 4x to both sides )
x + 3 = 6 ( subtract 3 from both sides )
