Answer:
x = - 4
Step-by-step explanation:
Given
3x - 2(6 - x) = 7x + 2(5 + x) - 6 ← distribute parenthesis on both sides
3x - 12 + 2x = 7x + 10 + 2x - 6, that is
5x - 12 = 9x + 4 ( subtract 9x from both sides )
- 4x - 12 = 4 ( add 12 to both sides )
- 4x = 16 ( divide both sides by - 4 )
x = - 4 → A
