Pre-Algebra Examples

$- 2 a - 7 a - (4 - 8 a)$

Step 1

Subtract $7 a$ from $- 2 a$ .

$- 9 a - (4 - 8 a)$

Step 2

Factor $- 1$ out of $- 9 a - (4 - 8 a)$ .

Tap for more steps...

Step 2.1

Reorder $4$ and $- 8 a$ .

$- 9 a - (- 8 a + 4)$

Step 2.2

Factor $- 1$ out of $- 9 a$ .

$- (9 a) - (- 8 a + 4)$

Step 2.3

Factor $- 1$ out of $- (9 a) - (- 8 a + 4)$ .

$- (9 a - 8 a + 4)$

$- (9 a - 8 a + 4)$

Step 3

Subtract $8 a$ from $9 a$ .

$- (a + 4)$

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