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6*x-((3*(x-4))/5)-((1/2)*x)-(4/4) = 5*x-((6/5)*x)+3/10 // - 5*x-((6/5)*x)+3/10
6*x-((3*(x-4))/5)-((1/2)*x)-(5*x)+(6/5)*x-(4/4)-(3/10) = 0
(-3/5)*(x-4)+6*x+(-1/2)*x-5*x+(6/5)*x-3/10-1 = 0
6*x-3/5*(x-4)-x/2-5*x+(6*x)/5-3/10-1 = 0
(-3/5*2*5*10*(x-4))/(2*5*10)+(2*5*6*10*x)/(2*5*10)+(5*10*(-x))/(2*5*10)+(-5*2*5*10*x)/(2*5*10)+(2*6*10*x)/(2*5*10)+(-3*2*5)/(2*5*10)+(-1*2*5*10)/(2*5*10) = 0
2*5*6*10*x-3/5*2*5*10*(x-4)+5*10*(-x)-5*2*5*10*x+2*6*10*x-3*2*5-1*2*5*10 = 0
540*x-50*x-500*x+120*x-100-30+240 = 0
490*x-500*x+120*x-100-30+240 = 0
120*x-10*x-100-30+240 = 0
110*x-100-30+240 = 0
110*x-100+210 = 0
110*x+110 = 0
(110*x+110)/(2*5*10) = 0
(110*x+110)/(2*5*10) = 0 // * 2*5*10
110*x+110 = 0
110*x+110 = 0 // - 110
110*x = -110 // : 110
x = -110/110
x = -1
x = -1
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