Answer:
![\boxed{\sf{b=2}}](https://img.qammunity.org/2023/formulas/mathematics/high-school/v5o4cuce7drbex084bw3exghwkoaqhzmiz.png)
Explanation:
Isolate the b from one side of the equation.
First, subtract by 5 from both sides.
![\sf{5+2b-5=9-5}](https://img.qammunity.org/2023/formulas/mathematics/high-school/goje2yj7hbk7fsg32wlu35v2szc4kal58u.png)
Solve.
Subtract.
9-5=4
2b=4
Divide by 2 from both sides.
2b/2=4/2
Solve.
Divide the numbers from left to right.
4/2=2
![\Longrightarrow \boxed{\sf{b=2}}](https://img.qammunity.org/2023/formulas/mathematics/high-school/4wq39qrexzg9bikj2c07yqwu0b028mohsh.png)
Therefore, the correct answer is b=2.
I hope this helps, let me know if you have any questions.