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(2*x-1)/3+3*x+4 = (7*(x+3))/10 // - (7*(x+3))/10
(2*x-1)/3-((7*(x+3))/10)+3*x+4 = 0
(2*x-1)/3+(-7/10)*(x+3)+3*x+4 = 0
(2*x-1)/3-7/10*(x+3)+3*x+4 = 0
(2*x-1)/3+(-7/10*3*(x+3))/3+(3*3*x)/3+(3*4)/3 = 0
2*x-7/10*3*(x+3)+3*3*x+3*4-1 = 0
9*x-1/10*x-73/10+12 = 0
89/10*x-73/10+12 = 0
89/10*x+47/10 = 0
(89/10*x+47/10)/3 = 0
(89/10*x+47/10)/3 = 0 // * 3
89/10*x+47/10 = 0
89/10*x+47/10 = 0 // - 47/10
89/10*x = -47/10 // : 89/10
x = -47/10/89/10
x = -47/89
x = -47/89
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