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b in (-oo:+oo)
44 = 7*b-b+8 // - 7*b-b+8
b-(7*b)-8+44 = 0
b-7*b-8+44 = 0
36-6*b = 0 // - 36
-6*b = -36 // : -6
b = -36/(-6)
b = 6
b = 6
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