Pre-Algebra Examples

$\frac{2 x - y}{y - 2 x}$

Step 1

Factor $- 1$ out of $2 x$ .

$\frac{- (- 2 x) - y}{y - 2 x}$

Step 2

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

$\frac{- (- 2 x) - (y)}{y - 2 x}$

Step 3

Factor $- 1$ out of $- (- 2 x) - (y)$ .

$\frac{- (- 2 x + y)}{y - 2 x}$

Step 4

Rewrite $- (- 2 x + y)$ as $- 1 (- 2 x + y)$ .

$\frac{- 1 (- 2 x + y)}{y - 2 x}$

Step 5

Reorder terms.

$\frac{- 1 (- 2 x + y)}{- 2 x + y}$

Step 6

Cancel the common factor.

$\frac{- 1 (- 2 x + y)}{- 2 x + y}$

Step 7

Divide $- 1$ by $1$ .

$- 1$

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