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
