Respuesta :

jbbj042903

Answer:

b= -8

Step-by-step explanation:

idk if f is part of the equation but in order to get -12 you must subtract -4 from -8

himynameisjohnwhite
First, you need to add 4 to both sides. You will get fb=-8
Then you divide f by both sides and you end up with b=-8/f

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