Linear Equation Calculator

Linear equation calculator solves the unknown variable x in the linear equation step by step.

What is a linear equation

A linear equation is expressed as
ax+b=c or a+bx=c

To solve the variable x in this equation
ax+b=c
ax=c-b
x=(c-b)/a.

To solve x in this equation
a+bx=c
bx=c-a
x=(c-a)/b

You can input any number, either a positive or a negative number.
For example, to calculate
-5.5x + 20 = -90
input value as
a = -5.5, b = 20, and c = -90.