Linear Equation Solver
Solve basic linear equations step-by-step.
Solve a linear equation of the form ax + b = c
How to Do It Manually
A linear equation has the form ax + b = c. Isolate x by performing the same operation on both sides of the equation.
ax + b = c → x = (c − b) / a
- Subtract b from both sides: ax = c − b.
- Divide both sides by a: x = (c − b) / a.
- Check your answer by substituting x back into the original equation.
Frequently Asked Questions
What if a = 0?
If a = 0, the equation has no x term. It either has no solution (0 = non-zero) or infinite solutions (0 = 0).
Can I solve equations with variables on both sides?
Yes — move all x terms to one side and constants to the other, then solve.