Equation Solver | Free Linear Equation Solver Tool
Solve linear equations with step-by-step solutions. Enter any equation like 2x + 3 = 7 and see every step explained.
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How to Solve Linear Equations
1. Simplify both sides
Combine like terms on each side of the equation. Distribute any coefficients if needed.
2. Move variable terms to one side
Add or subtract to move all terms with x to one side and constants to the other.
3. Isolate the variable
Divide both sides by the coefficient of x to find the value of x.
4. Verify your answer
Substitute your solution back into the original equation to confirm both sides are equal.
Reviewed by Emily Watson, M.Ed.
Mathematics EducatorMathematics teacher and curriculum designer with 15+ years of experience.
Equation Solver Pros & Cons
Pros
- ✅ Instant linear equation solving
- ✅ Step-by-step solution breakdown
- ✅ Solution verification built-in
- ✅ Free forever — no subscriptions
- ✅ Works offline after page load
Cons
- ✗ Linear equations only (ax + b = 0)
- ✗ No polynomial or system support
Frequently Asked Questions
How do you solve a linear equation?
To solve a linear equation, isolate the variable on one side. Move all x terms to one side and constants to the other. For 2x + 3 = 7: subtract 3 (2x = 4), then divide by 2 (x = 2).
What is a linear equation?
A linear equation has the variable to the power of 1, like ax + b = 0. It always has exactly one solution.
How do you verify a solution?
Substitute the answer back into the original equation. If both sides match, it's correct.
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