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x in (-oo:+oo)
(2*(x+3))/3+(3*(x-1))/4 = -1/6 // + -1/6
(2*(x+3))/3+(3*(x-1))/4-(-1/6) = 0
(2*(x+3))/3+(3*(x-1))/4+1/6 = 0
(2*4*6*(x+3))/(3*4*6)+(6*3^2*(x-1))/(3*4*6)+(1*3*4)/(3*4*6) = 0
2*4*6*(x+3)+6*3^2*(x-1)+1*3*4 = 0
102*x+12+90 = 0
102*x+102 = 0
(102*x+102)/(3*4*6) = 0
(102*x+102)/(3*4*6) = 0 // * 3*4*6
102*x+102 = 0
102*x+102 = 0 // - 102
102*x = -102 // : 102
x = -102/102
x = -1
x = -1
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