Algebra Examples

$| 7 x + 21 | < - 7$

Step 1

Since $| 7 x + 21 |$ is always positive and $- 7$ is negative, $| 7 x + 21 |$ is always greater than $- 7$ so the inequality cannot be true.

No solution

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