## Geometry: Common Core (15th Edition)

$n=8$
We start with the given equation: $2n+7=23$ We subtract $7$ from both sides of the equation: $2n+7-7=23-7$ $2n=16$ Next, we divide by $2$ on both sides of the equation: $\frac{2n}{2}=\frac{16}{2}$ $n=8$