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x in (-oo:+oo)
-58 = (5/8)*x // - (5/8)*x
-((5/8)*x)-58 = 0
(-5/8)*x-58 = 0
-5/8*x-58 = 0 // + 58
-5/8*x = 58 // : -5/8
x = 58/(-5/8)
x = -464/5
x = -464/5
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