Basic Math Examples

$2 z + 9 + (5 z - 12)$

Step 1

Remove parentheses.

$2 z + 9 + 5 z - 12$

Step 2

Add $2 z$ and $5 z$ .

$7 z + 9 - 12$

Step 3

Subtract $12$ from $9$ .

$7 z - 3$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$