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3*x+2/5 = 112/55 // - 112/55
3*x+2/5-(112/55) = 0
3*x+2/5-112/55 = 0
3*x-18/11 = 0 // + 18/11
3*x = 18/11 // : 3
x = 18/11/3
x = 6/11
x = 6/11
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