Pre-Algebra Examples

$(3 z + 1) + (5 + 7 z)$

Step 1

Remove parentheses.

$3 z + 1 + 5 + 7 z$

Step 2

Add $3 z$ and $7 z$ .

$10 z + 1 + 5$

Step 3

Add $1$ and $5$ .

$10 z + 6$

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