Basic Math Examples

$(21 \div 7) (4 a + a) - 12$

Step 1

Divide $21$ by $7$ .

$3 (4 a + a) - 12$

Step 2

Add $4 a$ and $a$ .

$3 (5 a) - 12$

Step 3

Multiply $5$ by $3$ .

$15 a - 12$

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