Question

evaluate the expression when (b = 3) and (x=-6).
(8b - x)

Explanation:

Step1: Substitute values

Substitute $b = 3$ and $x=-6$ into $8b - x$. We get $8\times3-(-6)$.

Step2: Calculate multiplication

First, calculate $8\times3 = 24$. The expression becomes $24-(-6)$.

Step3: Simplify subtraction of negative number

Subtracting a negative number is the same as adding a positive number. So $24-(-6)=24 + 6$.

Step4: Calculate final result

$24+6=30$.

Answer:

$30$