Pre-Algebra Examples

$x + (x + 1) + (x + 2)$

Step 1

Remove parentheses.

$x + x + 1 + x + 2$

Step 2

Add $x$ and $x$ .

$2 x + 1 + x + 2$

Step 3

Add $2 x$ and $x$ .

$3 x + 1 + 2$

Step 4

Add $1$ and $2$ .

$3 x + 3$

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