Inequality Calculator

Dividing or multiplying both sides of an inequality by a negative number reverses the direction of the comparison.

No — without a, there's no x term to isolate.

Less than (), less than or equal to (≤), and greater than or equal to (≥).

Solve a linear inequality of the form ax + b [operator] c for x.

Calculate

Enter your values below.

Result

Solution

Solved like a normal linear equation, except the inequality sign flips when both sides are divided by a negative number.

Example: −2x + 3 > 7 → x < −2.

FAQ

Why does the inequality sign sometimes flip?

Dividing or multiplying both sides of an inequality by a negative number reverses the direction of the comparison.

Can a be zero?

No — without a, there's no x term to isolate.

What operators are supported?

Less than (<), greater than (>), less than or equal to (≤), and greater than or equal to (≥).

How is the solution shown?

As x compared to a single boundary value, e.g. x < -2.