Solve for n 9n-8+6n-7=180

$9 n - 8 + 6 n - 7 = 180$

Simplify $9 n - 8 + 6 n - 7$ .

Add $9 n$ and $6 n$ .

$15 n - 8 - 7 = 180$

Subtract $7$ from $- 8$ .

$15 n - 15 = 180$

Move all terms not containing $n$ to the right side of the equation.

Add $15$ to both sides of the equation.

$15 n = 180 + 15$

Add $180$ and $15$ .

$15 n = 195$

Divide each term in $15 n = 195$ by $15$ and simplify.

Divide each term in $15 n = 195$ by $15$ .

$\frac{15 n}{15} = \frac{195}{15}$

Simplify the left side.

Cancel the common factor of $15$ .

Cancel the common factor.

$\frac{15 n}{15} = \frac{195}{15}$

Divide $n$ by $1$ .

$n = \frac{195}{15}$

Simplify the right side.

Divide $195$ by $15$ .

$n = 13$