Pre-Algebra Examples

$(m + n + 3) + (m + n + 4)$

Step 1

Remove parentheses.

$m + n + 3 + m + n + 4$

Step 2

Add $m$ and $m$ .

$2 m + n + 3 + n + 4$

Step 3

Add $n$ and $n$ .

$2 m + 2 n + 3 + 4$

Step 4

Add $3$ and $4$ .

$2 m + 2 n + 7$

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