CalculateMeasure

Math & Geometry

Inequality Calculator

Solve a one-variable linear inequality of the form ax + b <, ≤, >, or ≥ c.

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Calculator guide

How to use the Inequality Calculator

Solve a one-variable linear inequality of the form ax + b <, ≤, >, or ≥ c. Enter the requested values and select Calculate. The result and supporting values are produced locally in your browser.

Formula

ax + b ⧣ c → isolate x; reverse the inequality when dividing by a negative a

Worked example

2x + 3 ≤ 11 simplifies to x ≤ 4.

What to keep in mind

  • Dividing or multiplying both sides by a negative number reverses the inequality sign.

Methodology

This calculator uses deterministic arithmetic and performs the calculation locally in your browser. Verify assumptions, units, and source values for your specific use case.

Review standard: Level A · Standard formula. How calculator reviews work.

Frequently asked questions

What does this calculator calculate?

Solve a one-variable linear inequality of the form ax + b <, ≤, >, or ≥ c.

How is the result calculated?

ax + b ⧣ c → isolate x; reverse the inequality when dividing by a negative a.

Can I use the result for an important decision?

Use the result as a calculation aid and verify the inputs, assumptions, and applicable professional or regulatory requirements before relying on it for an important decision.

Does CalculateMeasure store the values I enter?

The calculator performs its arithmetic in your browser. The calculator itself does not need to send your entered values to a server to produce the result.