Pre-Algebra Examples

$(x + 5) + (4 x - 7)$

Step 1

Remove parentheses.

$x + 5 + 4 x - 7$

Step 2

Add $x$ and $4 x$ .

$5 x + 5 - 7$

Step 3

Subtract $7$ from $5$ .

$5 x - 2$

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