Pre-Algebra Examples

$- 18 < 2 x < 18$

Step 1

Divide each term in the inequality by $2$ .

$\frac{- 18}{2} < \frac{2 x}{2} < \frac{18}{2}$

Step 2

Divide $- 18$ by $2$ .

$- 9 < \frac{2 x}{2} < \frac{18}{2}$

Step 3

Cancel the common factor of $2$ .

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Step 3.1

Cancel the common factor.

$- 9 < \frac{2 x}{2} < \frac{18}{2}$

Step 3.2

Divide $x$ by $1$ .

$- 9 < x < \frac{18}{2}$

$- 9 < x < \frac{18}{2}$

Step 4

Divide $18$ by $2$ .

$- 9 < x < 9$

Step 5

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