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b in (-oo:+oo)
(1/2)*b-8 = -181/24 // + -181/24
(1/2)*b-(-181/24)-8 = 0
(1/2)*b+181/24-8 = 0
1/2*b-11/24 = 0 // + 11/24
1/2*b = 11/24 // : 1/2
b = 11/24/1/2
b = 11/12
b = 11/12
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