Algebra Examples

$- 4 < - 2 x \leq 4$

Step 1

Divide each term in the inequality by $- 2$ .

$\frac{- 4}{- 2} > \frac{- 2 x}{- 2} \geq \frac{4}{- 2}$

Step 2

Divide $- 4$ by $- 2$ .

$2 > \frac{- 2 x}{- 2} \geq \frac{4}{- 2}$

Step 3

Cancel the common factor of $- 2$ .

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Step 3.1

Cancel the common factor.

$2 > \frac{- 2 x}{- 2} \geq \frac{4}{- 2}$

Step 3.2

Divide $x$ by $1$ .

$2 > x \geq \frac{4}{- 2}$

Step 4

Divide $4$ by $- 2$ .

$2 > x \geq - 2$

Step 5

Rewrite the interval so that the left value is less than the right value. This is the correct way to write an interval solution.

$- 2 \leq x < 2$

Step 6

The result can be shown in multiple forms.

Inequality Form:

$- 2 \leq x < 2$

Interval Notation:

$[- 2, 2)$

Step 7