ADVERT

📐 Equation Solver

Solve linear equations, quadratic equations, and 2×2 systems step by step. See exact solutions, discriminants, determinants, and worked algebra.

Equation Solver

Enter coefficients and instantly solve linear equations, quadratic equations, or a system of two or three linear equations in two or three unknowns. See the final answer plus step‑by‑step working using standard algebra formulas.

Equation type

Solve a single linear equation ax + b = 0.

Coefficients

Editable fields

a (coefficient of x)

b (constant term)

Equation: 1·x + 0 = 0

Solution

Solution: x = -0

Step‑by‑step working

Start with ax + b = 0.
Here a = 1, b = 0.
Subtract b from both sides: ax = −b.
Divide by a: x = −b / a.
Compute x = −(0) / 1 = -0.

How to use this tool

Choose the equation type: linear equation, quadratic equation, or a 2×2 system of equations.
Enter the coefficients exactly as they appear in your exam or homework equation.
Scroll to the solution panel to see the final answer plus step‑by‑step algebra working.

Great online equation solver for homework

Use this online equation solver to verify linear equation solutions and quadratic roots in seconds.
See every intermediate value, discriminant, and determinant so you can follow the reasoning instead of just memorising formulas.
Use it as a teaching aid for explaining Cramer's rule, the quadratic formula calculator steps, and system of equations methods.

What this equation calculator supports

Single‑variable linear equations of the form ax + b = 0 solved as x = −b/a.
Quadratic equations with real or complex roots via the quadratic formula using the discriminant.
Systems of two or three linear equations in two or three variables using determinants (Cramer's rule system of equations calculator).

FAQ

Can this equation solver handle higher‑degree polynomials?: This equation calculator focuses on linear equations, quadratic equations, and 2×2 systems. For higher‑degree polynomials, try factoring them into linear and quadratic pieces where possible.
Does the quadratic equation solver show complex solutions?: Yes. When the discriminant of a quadratic is negative, the quadratic calculator expresses the two complex conjugate roots in standard a + bi form.
Is this online equation solver suitable for teaching?: The step list is designed for classrooms and self‑study, walking through each formula, substitution, and simplification so students see how to solve equations, not just the final number.

ADVERT

More like this

Calculate your BMI using metric or imperial units. Instantly check if you are underweight, normal, overweight, or obese.

Work with trig, logs, factorials, powers, hyperbolic functions, and memory features in a beautiful scientific calculator.

Differentiate polynomial functions of x symbolically using the power rule. View f'(x), simplifications, and evaluation at a specific x value with clear, step-by-step working.

Find indefinite and definite integrals of polynomial functions in x. See the antiderivative F(x) + C and compute ∫ from a to b with clear, step-by-step explanations.

Compute matrix addition, subtraction, multiplication, determinant, and inverse for up to 4×4 matrices. Ideal for linear algebra and system of equations checks.

Add, subtract, multiply, divide, and raise complex numbers to integer powers. View modulus, argument, and polar form r∠θ for fast complex arithmetic checks.

Solve any triangle from common combinations like SSS, SAS, ASA, SSA, or right triangles. Find missing sides, angles, area, and perimeter.

Calculate area, perimeter, surface area, and volume for common 2D shapes and 3D solids including circles, rectangles, triangles, spheres, cylinders, cones, and rectangular prisms.

ADVERT