Answer:
A
Explanation:
5x - 10 = 2 - 2x + 10(x - 3) ← distribute parenthesis and simplify right side
5x - 10 = 2 - 2x + 10x - 30
5x - 10 = 8x - 28 ( subtract 8x from both sides )
- 3x - 10 = - 28 ( add 10 to both sides )
- 3x = - 18 ( divide both sides by - 3)
x = 6