Linear Equation Solver (ax + b = c)
Enter the coefficients a, b and c for the equation ax + b = c to solve for x.
Linear Equation Solver (ax + b = c)
Solve a simple linear equation of the form ax + b = c for the value of x.
This calculator provides an estimate for general informational purposes only. It is not a substitute for professional financial, mechanical or engineering advice.
Linear equations of the form ax + b = c are solved by isolating x: subtract b from both sides, then divide by a. This calculator does that instantly for any coefficients you enter.
Example
- With the default values shown above, this calculator returns: x ≈ 6.00.
Frequently Asked Questions
What is the formula?
Rearranging ax + b = c gives x = (c − b) ÷ a.
What happens if a is 0?
If a is 0, the equation has no unique solution (either no solution or infinitely many), so avoid entering 0 for a.