Solve 9r-q/2

$$9 r - \frac { q } { 2 }$$

Evaluate

$$-\frac{q}{2}+9r$$

Short Solution Steps

To add or subtract expressions, expand them to make their denominators the same. Multiply 9r times \frac{2}{2}.

$$\frac{2\times 9r}{2}-\frac{q}{2}$$

Since \frac{2\times 9r}{2} and \frac{q}{2} have the same denominator, subtract them by subtracting their numerators.

$$\frac{2\times 9r-q}{2}$$

Do the multiplications in 2\times 9r-q.

$$\frac{18r-q}{2}$$

Factor

$$\frac{18r-q}{2}$$

Solution Steps

Factor out \frac{1}{2}.

$$\frac{18r-q}{2}$$