Упростите выражаение 6x-(2x-(3x-(4x+4)))

Question

Упростите выражаение 6x-(2x-(3x-(4x+4)))

Answer 1

6x - (2x - (3x - (4x + 4))) = 3x - 4
1) 3x - (4x + 4) = 3x - 4x - 4 = -x - 4
2) 2x - (-x - 4) = 2x + x + 4 = 3x + 4
3) 6x - (3x + 4) = 6x - 3x - 4 = 3x - 4