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(2*x)/3 = (x-10)/4 // - (x-10)/4
(2*x)/3-((x-10)/4) = 0
(-1*(x-10))/4+(2*x)/3 = 0
(-1*3*(x-10))/(3*4)+(2*4*x)/(3*4) = 0
2*4*x-1*3*(x-10) = 0
5*x+30 = 0
(5*x+30)/(3*4) = 0
(5*x+30)/(3*4) = 0 // * 3*4
5*x+30 = 0
5*x+30 = 0 // - 30
5*x = -30 // : 5
x = -30/5
x = -6
x = -6
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