Respuesta :

The Answer to this problem is B= -12

[tex] \frac{b}{4} + 2 = - 1[/tex]

[tex] \frac{b}{4} = - 1 - 2 = - 3[/tex]

[tex]b = - 3 \times 4 = - 12[/tex]

Answer: -12

ok done. Thank to me :>

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