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3*(2*x+1)-((3*x)/4) = (2*x)/3-(19/12) // - (2*x)/3-(19/12)
3*(2*x+1)-((3*x)/4)-((2*x)/3)+19/12 = 0
3*(2*x+1)+(-3/4)*x+(-2/3)*x+19/12 = 0
3*(2*x+1)+(-3*x)/4+(-2*x)/3+19/12 = 0
(4*12*3^2*(2*x+1))/(3*4*12)+(-3*3*12*x)/(3*4*12)+(-2*4*12*x)/(3*4*12)+(3*4*19)/(3*4*12) = 0
4*12*3^2*(2*x+1)-3*3*12*x-2*4*12*x+3*4*19 = 0
756*x-96*x+228+432 = 0
660*x+228+432 = 0
660*x+660 = 0
(660*x+660)/(3*4*12) = 0
(660*x+660)/(3*4*12) = 0 // * 3*4*12
660*x+660 = 0
660*x+660 = 0 // - 660
660*x = -660 // : 660
x = -660/660
x = -1
x = -1
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