1) 5x + x - 3x + 12 = 33 - 185x + x - 3x + 12 = 153x + 12 = 153x = 3x = 1
2) 9x - 2x - 5x = 64 - 679x - 2x - 5x = 64 - 422x = 22x = 11
3) 7x - 5x + 4x - 38 = 152 + 46x - 38 = 30 + 46x - 38 = 346*x = 72x = 12
1) 5x + x - 3x + 12 = 33 - 18
5x + x - 3x + 12 = 15
3x + 12 = 15
3x = 3
x = 1
2) 9x - 2x - 5x = 64 - 67
9x - 2x - 5x = 64 - 42
2x = 22
x = 11
3) 7x - 5x + 4x - 38 = 152 + 4
6x - 38 = 30 + 4
6x - 38 = 34
6*x = 72
x = 12