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3*(5-2*x) = 5*(3*x+5)+5/4 // - 5*(3*x+5)+5/4
3*(5-2*x)-(5*(3*x+5))-(5/4) = 0
3*(5-2*x)-5*(3*x+5)-5/4 = 0
(3*4*(5-2*x))/4+(-5*4*(3*x+5))/4-5/4 = 0
3*4*(5-2*x)-5*4*(3*x+5)-5 = 0
-84*x-40-5 = 0
-84*x-45 = 0
(-84*x-45)/4 = 0
(-84*x-45)/4 = 0 // * 4
-84*x-45 = 0
-84*x-45 = 0 // + 45
-84*x = 45 // : -84
x = 45/(-84)
x = -15/28
x = -15/28
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