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(5*x+6)/10 = (4*x-8)/10 // - (4*x-8)/10
(5*x+6)/10-((4*x-8)/10) = 0
(5*x+6)/10+(-1*(4*x-8))/10 = 0
5*x-1*(4*x-8)+6 = 0
x+14 = 0
(x+14)/10 = 0
(x+14)/10 = 0 // * 10
x+14 = 0
x+14 = 0 // - 14
x = -14
x = -14
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