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b in (-oo:+oo)
1-(3*b)-b = 45 // - 45
1-(3*b)-b-45 = 0
1-3*b-b-45 = 0
-4*b-44 = 0 // + 44
-4*b = 44 // : -4
b = 44/(-4)
b = -11
b = -11
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