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x in (-oo:+oo)
25 = (1.25/0.15)*x // - (1.25/0.15)*x
25-((1.25/0.15)*x) = 0
25-8.33333333*x = 0
25-8.33333333*x = 0 // - 25
-8.33333333*x = -25 // : -8.33333333
x = -25/(-8.33333333)
x = 3
x = 3
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