Inequality Solver: Free Inequality Calculator with Steps

Solve linear, quadratic, compound and absolute value inequalities with a number line. Free, with no sign-up.

Use <, >, <= and >=, ^ for powers and |x| for absolute value. Try an example:

How to Use the Inequality Solver

Choose linear, quadratic, compound or absolute value.

Use <, >, <= or >=, and ^ for powers, such as x^2.

See each step, the answer and a number line.

Solve 3x + 5 > 20, including flipping the sign when you divide by a negative.

Find where a parabola is above or below zero.

Handle −3 < 2x + 1 ≤ 7 and |x − 2| < 3.

Yes. It is free and needs no sign-up.

Linear, quadratic, compound and absolute value inequalities in x.

Use <, >, <= and >=. You can also paste ≤ and ≥.

Multiplying or dividing both sides by a negative number reverses the order of the numbers, so < becomes > and the other way round.

Fractions with x in the denominator and powers above 2 are not included yet.