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x in (-oo:+oo)
-8*x = -16/9 // + -16/9
-8*x-(-16/9) = 0
16/9-8*x = 0
16/9-8*x = 0 // - 16/9
-8*x = -16/9 // : -8
x = -16/9/(-8)
x = 2/9
x = 2/9
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