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2*(5*x+3) = (3/7)*x+2/3 // - (3/7)*x+2/3
2*(5*x+3)-((3/7)*x)-(2/3) = 0
2*(5*x+3)+(-3/7)*x-2/3 = 0
2*(5*x+3)+(-3*x)/7-2/3 = 0
(2*3*7*(5*x+3))/(3*7)+(-3*3*x)/(3*7)+(-2*7)/(3*7) = 0
2*3*7*(5*x+3)-3*3*x-2*7 = 0
201*x-14+126 = 0
201*x+112 = 0
(201*x+112)/(3*7) = 0
(201*x+112)/(3*7) = 0 // * 3*7
201*x+112 = 0
201*x+112 = 0 // - 112
201*x = -112 // : 201
x = -112/201
x = -112/201
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