QuickFreeTools

Online Linear Equation Solver

Solve simple linear equations of the form ax + b = c for x. Enter coefficients a, b, c.

Equation: a·x + b = c. Enter a, b, c.

Frequently Asked Questions

What type of equations does this solve?
Linear equations in one variable: ax + b = c. Solution: x = (c − b) / a when a ≠ 0.
What if a is 0?
If a = 0 then the equation is b = c; either no solution (b ≠ c) or every x is a solution (b = c). The tool will indicate.
Can I use decimals?
Yes. Enter a, b, c as decimals; the solution is computed with decimal arithmetic.

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