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7*x+2/5 = 4*x-(98/55) // - 4*x-(98/55)
7*x-(4*x)+2/5+98/55 = 0
7*x-4*x+2/5+98/55 = 0
3*x+24/11 = 0 // - 24/11
3*x = -24/11 // : 3
x = -24/11/3
x = -8/11
x = -8/11
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