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(2*x+2)/12-((3-x)/4) = x/3 // - x/3
(2*x+2)/12-((3-x)/4)-(x/3) = 0
(2*x+2)/12+(-1*(3-x))/4-x/3 = 0
(3*4*(2*x+2))/(3*4*12)+(-1*3*12*(3-x))/(3*4*12)+(4*12*(-x))/(3*4*12) = 0
3*4*(2*x+2)-1*3*12*(3-x)+4*12*(-x) = 0
60*x-48*x-84 = 0
12*x-84 = 0
(12*x-84)/(3*4*12) = 0
(12*x-84)/(3*4*12) = 0 // * 3*4*12
12*x-84 = 0
12*x-84 = 0 // + 84
12*x = 84 // : 12
x = 84/12
x = 7
x = 7
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