Simplify -7(n+3)-8(1+8n)

$- 7 (n + 3) - 8 (1 + 8 n)$

Step 1

Simplify each term.

Apply the distributive property.

$- 7 n - 7 \cdot 3 - 8 (1 + 8 n)$

Multiply $- 7$ by $3$ .

$- 7 n - 21 - 8 (1 + 8 n)$

Apply the distributive property.

$- 7 n - 21 - 8 \cdot 1 - 8 (8 n)$

Multiply $- 8$ by $1$ .

$- 7 n - 21 - 8 - 8 (8 n)$

Multiply $8$ by $- 8$ .

$- 7 n - 21 - 8 - 64 n$

$- 7 n - 21 - 8 - 64 n$

Step 2

Simplify by adding terms.

Subtract $64 n$ from $- 7 n$ .

$- 71 n - 21 - 8$

Subtract $8$ from $- 21$ .

$- 71 n - 29$

$- 71 n - 29$

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