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b in (-oo:+oo)
3*b-(7/8) = 185/8 // - 185/8
3*b-(7/8)-(185/8) = 0
3*b-7/8-185/8 = 0
3*b-24 = 0 // + 24
3*b = 24 // : 3
b = 24/3
b = 8
b = 8
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