Pre-Algebra Examples

$(x + 3) + (x + 1)$

Step 1

Remove parentheses.

$x + 3 + x + 1$

Step 2

Add $x$ and $x$ .

$2 x + 3 + 1$

Step 3

Add $3$ and $1$ .

$2 x + 4$

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