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8*(x+30/8) = 8*((1*x)/8) // - 8*((1*x)/8)
8*(x+30/8)-(8*((1*x)/8)) = 0
8*(x+30/8)-x = 0
8*(x+15/4)-x = 0
8*(x+15/4)-x = 0
7*x+30 = 0
7*x+30 = 0
7*x+30 = 0 // - 30
7*x = -30 // : 7
x = -30/7
x = -30/7
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