Answer:
x = 2
Explanation:
3(x - 4) = 2x - (6 + x) first get rid of parenthesis
3(x - 4) = 3x - 12 and
2x - (6 + x) = 2x - 6 - x
3x - 12 = 2x - 6 - x
3x - 12 = x - 6 export like terms to the same side
3x - x = 12 - 6
2x = 6 divide both sides by 2
x = 3