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b in (-oo:+oo)
(1/3)*b = -3.52 // + 3.52
(1/3)*b+3.52 = 0
1/3*b+3.52 = 0 // - 3.52
1/3*b = -3.52 // : 1/3
b = -3.52/1/3
b = -10.56000011
b = -10.56000011
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