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5*(2*x-6) = (2*x)/2 // - (2*x)/2
5*(2*x-6)-((2*x)/2) = 0
5*(2*x-6)-x = 0
5*(2*x-6)-x = 0
9*x-30 = 0
9*x-30 = 0
9*x-30 = 0 // + 30
9*x = 30 // : 9
x = 30/9
x = 10/3
x = 10/3
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