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b in (-oo:+oo)
3*(4*b-2)+7*b+6/3 = 0
3*(4*b-2)+7*b+2 = 0
3*(4*b-2)+7*b+2 = 0
19*b-6+2 = 0
19*b-4 = 0
19*b-4 = 0
19*b-4 = 0 // + 4
19*b = 4 // : 19
b = 4/19
b = 4/19
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