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9-((5/2)*x)-5 = -55 // + 55
9-((5/2)*x)-5+55 = 0
(-5/2)*x-5+9+55 = 0
59-5/2*x = 0 // - 59
-5/2*x = -59 // : -5/2
x = -59/(-5/2)
x = 118/5
x = 118/5
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