Solve |4x 1| <21 - ScanMath

Evaluate

∣ 4 x \times 1 ∣ < 21

Simplify

More Steps

4 ∣ x ∣ < 21

Divide both sides

\frac{4 ∣ x ∣}{4} < \frac{21}{4}

Divide the numbers

∣ x ∣ < \frac{21}{4}

Separate the inequality into 2 possible cases

{x < \frac{21}{4} x > - \frac{21}{4}

Solution

- \frac{21}{4} < x < \frac{21}{4}

Alternative Form

x \in (- \frac{21}{4}, \frac{21}{4})

Solve the inequality