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x in (-oo:+oo)
x/9 = 8/11 // - 8/11
x/9-(8/11) = 0
x/9-8/11 = 0
1/9*x-8/11 = 0 // + 8/11
1/9*x = 8/11 // : 1/9
x = 8/11/1/9
x = 72/11
x = 72/11
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