Here you can find free calculators which help you solve linear, quadratic and cubic equations, equations of the fourth degree and systems of linear equations.

Linear equation solver

Solving linear equations in one variable, including linear equations with fractions and parentheses.

Solving linear equations in one variable, including linear equations with fractions and parentheses.

Quadratic equation solver

An easy to use calculator that solves quadratic equations in the form ax^{2} + bx + c = 0, ax^{2} + bx = 0 and ax^{2} + c = 0.

An easy to use calculator that solves quadratic equations in the form ax

Advanced quadratic equation solver

Solving a wide range of quadratic equations, including quadratic equations with fractions and parentheses.

Solving a wide range of quadratic equations, including quadratic equations with fractions and parentheses.

Cubic equation solver

Free calculator to solve cubic equations (third degree equations).

Free calculator to solve cubic equations (third degree equations).

Quartic equation solver

Calculator to solve quartic equations (4th degree equations).

Calculator to solve quartic equations (4th degree equations).

Solving systems of two linear equations in two variables

This calculator solves systems of two linear equations with two variables.

This calculator solves systems of two linear equations with two variables.

Solving systems of three linear equations in three variables

Free calculator that lets you solve systems of three linear equations with three variables.

Free calculator that lets you solve systems of three linear equations with three variables.

System of linear equations solver

Solving systems of n linear equations with n unknowns. Solving systems of linear equations involving 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11 variables.

Solving systems of n linear equations with n unknowns. Solving systems of linear equations involving 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11 variables.

Solving linear equations with decimals.

Solving linear equations in one variable.

Solving equations with fractions.

Solving linear equations with fractions.

Solving quadratic equations with fractions.

Solving cubic equations with Cardano's method.

How to solve a fourth degree equation (quartic equation).

Solving a system of linear equations using Cramer's rule.

Solving a system of linear equations using Gaussian Elimination.

Solving a system of two linear equations with the substitution method.

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