Equation Solver

Solve linear, quadratic, and systems of equations.

c (RHS)

a (x²)

b (x)

Equation 1: a₁x + b₁y = c₁
Equation 2: a₂x + b₂y = c₂

a₁

b₁

c₁

a₂

b₂

c₂

Enter your values above to see the result.

Your Results

Methods

Linear: isolate x → x=(c−b)/a
Quadratic: quadratic formula
System: Cramer's rule (determinants)

Related Calculators

Pro Tips

Results update as you type — change any field to see the effect immediately.

Check that every value uses the same unit before comparing results.

Use the copy button to paste the equation solver figures into a note or spreadsheet.

Nothing is sent to a server, so you can use this with private figures.