Evaluate: 12-5(a+2)=8+a

Evaluate: $\frac{9}{4}=2.25$

Multiply $1$ and $8$ to get $8$.

$$\frac{8+3}{8}-\left(-\frac{7}{8}\right)$$

Add $8$ and $3$ to get $11$.

$$\frac{11}{8}-\left(-\frac{7}{8}\right)$$

The opposite of $-\frac{7}{8}$ is $\frac{7}{8}$.

$$\frac{11}{8}+\frac{7}{8}$$

Since $\frac{11}{8}$ and $\frac{7}{8}$ have the same denominator, add them by adding their numerators.

$$\frac{11+7}{8}$$

Add $11$ and $7$ to get $18$.

$$\frac{18}{8}$$

Reduce the fraction $\frac{18}{8}$ to lowest terms by extracting and canceling out $2$.

$$\frac{9}{4}$$

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