3(2 - x) + 2 = 3 - 1/2(x + 1)
6 - 3x + 2 = 3 - 1/2x - 1/2 / * 2
12 - 6x + 4 = 6 - x - 1
-6x + 16 = -x + 5
-6x + x = 5 - 16
-5x = -11 / : (-5)
x = 2,2
