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x-((1/3)*x)+4/9 = 2/99 // - 2/99
x-((1/3)*x)+4/9-(2/99) = 0
x+(-1/3)*x+4/9-2/99 = 0
2/3*x+14/33 = 0 // - 14/33
2/3*x = -14/33 // : 2/3
x = -14/33/2/3
x = -7/11
x = -7/11
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