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x in (-oo:+oo)
45-(9*x) = (1/8)*x-2 // - (1/8)*x-2
2-(9*x)-((1/8)*x)+45 = 0
(-1/8)*x-9*x+2+45 = 0
47-73/8*x = 0 // - 47
-73/8*x = -47 // : -73/8
x = -47/(-73/8)
x = 376/73
x = 376/73
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