Question

evaluate the expression when b = -3 and c = 4. c - 3b

Explanation:

Step1: Substitute values

Substitute $b = - 3$ and $c = 4$ into $c-3b$.
$4-3\times(-3)$

Step2: Calculate multiplication

First, calculate $3\times(-3)=-9$.
$4-(-9)$

Step3: Calculate subtraction

$4 + 9=13$

Answer:

$13$