Question

evaluate the expression when b = -2 and y = 5. -9y + b

Explanation:

Step1: Substitute values

Substitute $b = - 2$ and $y = 5$ into $-9y + b$.
$-9\times5+( - 2)$

Step2: Calculate multiplication

Calculate $-9\times5$.
$-45+( - 2)$

Step3: Calculate addition

Calculate $-45+( - 2)$.
$-45 - 2=-47$

Answer:

-47