Answer:
7b+4
Step-by-step explanation:
Combine like terms.
[tex]2 {b}^{2} - 2 {b}^{2} = 0[/tex]
[tex]3b - ( - 4b) = 7b[/tex]
[tex] - 5 - ( - 9) = 4[/tex]
So, the answer is
[tex]7b + 4[/tex]
