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4*(x-5) = 72/6 // - 72/6
4*(x-5)-(72/6) = 0
4*(x-5)-12 = 0
4*(x-5)-12 = 0
4*x-32 = 0
4*x-32 = 0
4*x-32 = 0 // + 32
4*x = 32 // : 4
x = 32/4
x = 8
x = 8
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