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x in (-oo:+oo)
-(3*x)-2/5 = -67/55 // + -67/55
-(3*x)-2/5-(-67/55) = 0
67/55-3*x-2/5 = 0
9/11-3*x = 0 // - 9/11
-3*x = -9/11 // : -3
x = -9/11/(-3)
x = 3/11
x = 3/11
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