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20-((3*x)/4) = 4*x-(2*(6-(3*x)))-4 // - 4*x-(2*(6-(3*x)))-4
2*(6-(3*x))-((3*x)/4)-(4*x)+4+20 = 0
2*(6-3*x)+(-3/4)*x-4*x+4+20 = 0
2*(6-3*x)+(-3*x)/4-4*x+4+20 = 0
(2*4*(6-3*x))/4+(-3*x)/4+(-4*4*x)/4+(4^2)/4+(4*20)/4 = 0
2*4*(6-3*x)-3*x-4*4*x+4*20+16 = 0
16-27*x-16*x+48+80 = 0
16-43*x+48+80 = 0
64-43*x+80 = 0
144-43*x = 0
(144-43*x)/4 = 0
(144-43*x)/4 = 0 // * 4
144-43*x = 0
144-43*x = 0 // - 144
-43*x = -144 // : -43
x = -144/(-43)
x = 144/43
x = 144/43
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