Basic Math Examples

$7 \cdot (- 9 y) - 3 z$

Step 1

Remove parentheses.

$7 \cdot - 9 y - 3 z$

Step 2

Factor $3$ out of $7 \cdot - 9 y - 3 z$ .

Tap for more steps...

Step 2.1

Factor $3$ out of $7 \cdot - 9 y$ .

$3 (7 \cdot - 3 y) - 3 z$

Step 2.2

Factor $3$ out of $- 3 z$ .

$3 (7 \cdot - 3 y) + 3 (- z)$

Step 2.3

Factor $3$ out of $3 (7 \cdot - 3 y) + 3 (- z)$ .

$3 (7 \cdot - 3 y - z)$

$3 (7 \cdot - 3 y - z)$

Step 3

Multiply $7$ by $- 3$ .

$3 (- 21 y - z)$

Step 4

Factor.

Tap for more steps...

Step 4.1

Factor $- 1$ out of $- 21 y - z$ .

Tap for more steps...

Step 4.1.1

Factor $- 1$ out of $- 21 y$ .

$3 (- (21 y) - z)$

Step 4.1.2

Factor $- 1$ out of $- z$ .

$3 (- (21 y) - (z))$

Step 4.1.3

Factor $- 1$ out of $- (21 y) - (z)$ .

$3 (- (21 y + z))$

$3 (- (21 y + z))$

Step 4.2

Remove unnecessary parentheses.

$3 \cdot - 1 (21 y + z)$

$3 \cdot - 1 (21 y + z)$

Step 5

Combine exponents.

Tap for more steps...

Step 5.1

Factor out negative.

$- (3 (21 y + z))$

Step 5.2

Multiply $3$ by $- 1$ .

$- 3 (21 y + z)$

$- 3 (21 y + z)$

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