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(x-5)/10+(102*x)/5 = (3-x)/4 // - (3-x)/4
(x-5)/10-((3-x)/4)+(102*x)/5 = 0
(x-5)/10+(-1*(3-x))/4+(102*x)/5 = 0
(4*5*(x-5))/(4*5*10)+(-1*5*10*(3-x))/(4*5*10)+(4*10*102*x)/(4*5*10) = 0
4*5*(x-5)-1*5*10*(3-x)+4*10*102*x = 0
70*x+4080*x-250 = 0
4150*x-250 = 0
(4150*x-250)/(4*5*10) = 0
(4150*x-250)/(4*5*10) = 0 // * 4*5*10
4150*x-250 = 0
4150*x-250 = 0 // + 250
4150*x = 250 // : 4150
x = 250/4150
x = 5/83
x = 5/83
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