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x in (-oo:+oo)
(-2*x)/9-2 > -7 // + 7
(-2*x)/9-2+7 > 0
5-2/9*x > 0 // - 5
-2/9*x > -5 // : -2/9
x < -5/(-2/9)
x < 45/2
x in (-oo:45/2)
(-oo:45/2)
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