Algebra Calculator — Free Online Equation Solver
Solve equations for x and simplify algebraic expressions.
Use ^ for powers, for example x^2.
Solution
x = 4
All terms on one side
2x − 8 = 0Example Equations and Solutions
| Equation | Solution |
|---|---|
| 2x + 3 = 11 | x = 4 |
| 3(x − 2) = 2x + 5 | x = 11 |
| x/2 + 1/3 = 1 | x = 4/3 |
| x² − 5x + 6 = 0 | x = 2, x = 3 |
| x² − 5x + 3 = 0 | x = (5 − √13)/2, x = (5 + √13)/2 |
| x³ − 6x² + 11x − 6 = 0 | x = 1, x = 2, x = 3 |
| x² + 1 = 0 | No real solution |
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About this calculator
Sources
- NIST Digital Library of Mathematical Functions — §1.11 Zeros of Polynomials: dlmf.nist.gov/1.11
Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and may not reflect exact values.
Last updated: November 8, 2026