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x in (-oo:+oo)
-(5*x)-8 = 37 // - 37
-(5*x)-37-8 = 0
-5*x-37-8 = 0
-5*x-45 = 0 // + 45
-5*x = 45 // : -5
x = 45/(-5)
x = -9
x = -9
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