3(3-x)+2(2x+1)=3xper2 +12

3(3 – x) + 2(2x + 1) = 3x/2 + 12
9 – 3x + 4x + 2 = 3x/2 + 12
x + 11 = 3x/2 + 12
– x/2 = 1
x = – 2