Respuesta :

Answer:

B=-18

Step-by-step explanation:

3(2b+9)-2b+1=4(b+7)

5b+9-2b+1=4b+28

3b+10=4b+28

-3b -3b

10=b+28

-28 -28

-18=b

b= -18

This is what I got not 100% sure I'm right