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5*x+2/9 = 3*x+20/9 // - 3*x+20/9
5*x-(3*x)+2/9-(20/9) = 0
5*x-3*x+2/9-20/9 = 0
2*x-2 = 0 // + 2
2*x = 2 // : 2
x = 2/2
x = 1
x = 1
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