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Precalculus Examples

9 < x + 7 < 10

$9 < x + 7 < 10$

Step 1

Subtract

7

$7$ from each section of the inequality because it does not contain the variable we are trying to solve for.

9 - 7 < x < 10 - 7

$9 - 7 < x < 10 - 7$

Step 2

Subtract

7

$7$ from

9

$9$ .

2 < x < 10 - 7

$2 < x < 10 - 7$

Step 3

Subtract

7

$7$ from

10

$10$ .

2 < x < 3

$2 < x < 3$

Step 4

The result can be shown in multiple forms.

Inequality Form:

2 < x < 3

$2 < x < 3$

Interval Notation:

(2, 3)

$(2, 3)$

Step 5

Enter YOUR Problem

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

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