Linear Equation Calculator
Calculate linear equation instantly in your browser.
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What this tool does
Calculate linear equation instantly in your browser. One unknown in one equation; the step table shows the standard isolate-x method used in algebra classes.
How to use the Linear Equation Calculator
- Enter or select coefficient a (ax).
- Enter or select constant b.
- Enter or select right-hand side c.
- Read the calculated result; change any measurement to compare alternatives.
Formula
Solve ax + b = c by undoing operations in reverse order: subtract b from both sides, then divide both sides by a, giving x = (c − b)/a.
- a
- Coefficient a (ax)
- b
- Constant b
- c
- Right-hand side c
One unknown in one equation; the step table shows the standard isolate-x method used in algebra classes.
Worked example
For linear equation calculator, the following measurements illustrate the exact method: Coefficient a (ax): 2; Constant b: 3; Right-hand side c: 11.
Inputs
- Coefficient a (ax)2
- Constant b3
- Right-hand side c11
Result
- x4
- Check (ax + b)11
Results explained
- x
- x from the formula above. One unknown in one equation; the step table shows the standard isolate-x method used in algebra classes.
- Check (ax + b)
- Check (ax + b) from the formula above. One unknown in one equation; the step table shows the standard isolate-x method used in algebra classes.
Frequently asked questions
Solve ax + b = c by undoing operations in reverse order: subtract b from both sides, then divide both sides by a, giving x = (c − b)/a.
One unknown in one equation; the step table shows the standard isolate-x method used in algebra classes.
Where mathematically meaningful, yes. Fields specify permitted ranges and undefined operations display an error.
Exact integer calculations use safe integers; decimal calculations use browser floating point, so small rounding differences can occur.
All values remain in your browser and are never uploaded.