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x in (-oo:+oo)
11/15 = x/45 // - x/45
11/15-(x/45) = 0
11/15-1/45*x = 0 // - 11/15
-1/45*x = -11/15 // : -1/45
x = -11/15/(-1/45)
x = 33
x = 33
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