Maths & numbers

Linear equation solver

Solve a single equation of the form ax + b = c.

Linear equation solver
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A clear answer. Here’s how.

For non-zero a, x=(c−b)/a. When a is zero, distinguishes no solution from infinitely many solutions by comparing b and c. Uses ordinary floating-point arithmetic.

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Worked example

A fixed demonstration, separate from the values you enter above.

Coefficient a
3
Constant b
5
Right side c
20

Example result

x
5