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MAKE SENSE OF THE UNKNOWNS
Algebra calculators
Find the answer. Follow the working. Choose the solver that matches your equation.
Linear Equation Calculator
Solve linear equations with x on both sides. Get exact fractions, worked steps and a graph.
Open calculator →02 / QUADRATICx² − 5x + 6 = 0Quadratic Equation Calculator
Find real or complex roots, the discriminant and vertex of a quadratic equation, with worked steps and a graph.
Open calculator →03 / SIMULTANEOUS2x + y = 5System of Equations Calculator
Solve two or three simultaneous linear equations with exact fractions, elimination steps and solution verification.
Open calculator →04 / POLYNOMIALx³ − 6x² + 11x − 6 = 0Polynomial Equation Calculator
Find approximate real and complex roots of polynomials up to degree six, with repeated roots, residual checks and a graph.
Open calculator →Which solver do I need?
| Your equation | Choose | What you get |
|---|---|---|
| One unknown, no powers above 1 | Linear | Exact answer, rearrangement steps, both sides graphed |
| Highest power is x² | Quadratic | Roots, discriminant, vertex and parabola |
| Two or three linear equations together | System of equations | Exact row operations and verification |
| Highest power is x³ to x⁶ | Polynomial | Approximate real and complex roots, multiplicities and graph |
A few things to know
Enter coefficients rather than unrestricted equation text. Include a zero when a term is missing, and keep variable order consistent across a system. Fractions and decimals are supported. Each solver includes examples, working and a check of its results.
Linear equations and systems use exact fractions. Polynomial roots are numerical approximations and are checked for convergence and residual error. These tools solve algebraic equations; they do not solve trigonometric, logarithmic or differential equations.