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b in (-oo:+oo)
2*(3*b+10) = -46 // + 46
2*(3*b+10)+46 = 0
2*(3*b+10)+46 = 0
6*b+66 = 0
6*b+66 = 0
6*b+66 = 0 // - 66
6*b = -66 // : 6
b = -66/6
b = -11
b = -11
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