Question

simplify the expression: -7 + 5n + -8(8 + -n)

Explanation:

Step1: Distribute -8 to parentheses

$-7 + 5n + (-8 \times 8) + (-8 \times -n)$
$-7 + 5n - 64 + 8n$

Step2: Combine constant terms

$-7 - 64 + 5n + 8n$
$-71 + 5n + 8n$

Step3: Combine like variable terms

$-71 + (5 + 8)n$
$-71 + 13n$

Answer:

$13n - 71$