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Instant result
The result is updated directly from the data entered.
Online Calculator
Linear equation calculator
Enter the coefficients of a linear equation and calculate the value of x.
Form: ax + b = c
x = 4
Information
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Local processing
The calculations are done in your browser without sending the values to a server.
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Free
No registration, subscription, or paid API required.
Frequently asked questions
What equations does it solve?
Equations of the form ax + b = c.
What if a is zero?
There may be infinite solutions or none, according to the values of b and c.
Does it support negative numbers?
Yes.
Does it support decimals?
Yes.