Linear Inequality Solver
Linear Inequality Solver with explicit inputs, formulas and domain checks.
Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Real-number solutions; parentheses exclude endpoints, square brackets include them. Coefficients use floating-point arithmetic, so nearly repeated roots may be sensitive to rounding.
Example Calculation
- a in ax+b relation c: 2
- b: 1
- Relation: <
- c: 5
2x+1<5 reduces to x<2, so the solution is (−∞,2).
Frequently asked questions
How do I use this calculator?
Enter a in ax+b relation c, b, relation, c. The result updates automatically. Use Reset to restore the example values.
What method does it use?
Subtract b; divide by a, reversing the relation when a<0.. Real-number solutions; parentheses exclude endpoints, square brackets include them. Coefficients use floating-point arithmetic, so nearly repeated roots may be sensitive to rounding.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.