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2*x+4*x-(8/9) = -196/99 // + -196/99
2*x+4*x-(8/9)-(-196/99) = 0
2*x+4*x-8/9+196/99 = 0
6*x+12/11 = 0 // - 12/11
6*x = -12/11 // : 6
x = -12/11/6
x = -2/11
x = -2/11
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