Respuesta :
In this exercise we have to use our knowledge of equations and calculate the value of B, so we have to:
[tex]B= (9-12x)/5[/tex]
Then we have that the given equation is given as:
[tex]5b +12c = 9[/tex]
So putting the b in evidence we can write this equation as:
[tex]5b = 9 -12c[/tex]
Then this value of B will be given as:
[tex]B= (9-12c)/5[/tex]
See more about equation at brainly.com/question/2263981