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2*((5/8)*x-6) = 28 // - 28
2*((5/8)*x-6)-28 = 0
2*(5/8*x-6)-28 = 0
2*(5/8*x-6)-28 = 0
5/4*x-40 = 0
5/4*x-40 = 0
5/4*x-40 = 0 // + 40
5/4*x = 40 // : 5/4
x = 40/5/4
x = 32
x = 32
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