Basic Math Examples

$- 15 + r = - 28$

Step 1

Add $15$ to both sides of the equation.

$r = - 28 + 15$

Step 2

Add $- 28$ and $15$ .

$r = - 13$

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