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5*x+4/7 = 354/7 // - 354/7
5*x+4/7-(354/7) = 0
5*x+4/7-354/7 = 0
5*x-50 = 0 // + 50
5*x = 50 // : 5
x = 50/5
x = 10
x = 10
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