## Precalculus (6th Edition) Blitzer

The solution for the indicated problem is $8$.
Solve the given expression: Recall that $-\left( -a \right)=a$ \begin{align} & \frac{1}{2}\left[ 8-\left( -8 \right) \right]=\frac{1}{2}\left[ 8+8 \right] \\ & =\frac{1}{2}\left[ 16 \right] \\ & =8 \end{align} Hence, the solution for the indicated problem is $8$.