1) - 5(4 - x) + 2(3 - x) - 2 = - 20 + 5x + 6 - 2x - 2 = 3x -16
2) 3a - 7b - 6a + 8b = - 3a + b
3) 10x - (3x + 1) + (x - 4) = 10x - 3x - 1 + x - 4 = 8x - 5
4) 3 * (4x + 2) - 6 = 12x + 6 - 6 = 12x
1) - 5(4 - x) + 2(3 - x) - 2 = - 20 + 5x + 6 - 2x - 2 = 3x -16
2) 3a - 7b - 6a + 8b = - 3a + b
3) 10x - (3x + 1) + (x - 4) = 10x - 3x - 1 + x - 4 = 8x - 5
4) 3 * (4x + 2) - 6 = 12x + 6 - 6 = 12x
2) -3a+b
3) 10x-3x-1+x-4 ; 8x-5
4) 12x+6-6 ; 12x