X = 3 - x + 5 = 20 - 4x
X = 20 - 9x - 4x + 10 = 7x - 30
X = 8 - x + 4 = 12
X = 32 - x – 12 = 20
X = 2 - 4x + 2 = 10
X = 3 - -3x = -9
X = 5 - 3x + 12 = 27
X = 11 - x + 4 = 15
X = 15 - 2x – 5 = x + 10