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3*x+x-(2/9) = 3*x+2/3+6 // - 3*x+2/3+6
3*x+x-(3*x)-(2/9)-(2/3)-6 = 0
3*x+x-3*x-2/9-2/3-6 = 0
x-62/9 = 0 // + 62/9
x = 62/9
x = 62/9
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