Solve linear equations, find x, convert to slope-intercept form, and identify slope and intercepts with this free linear equation calculator.
Solve for x:
ax + b = c, so x = (c - b) ÷ a
Slope-intercept form:
y = mx + b
X-intercept:
Set y = 0 and solve for x
Y-intercept:
Set x = 0 and solve for y
Linear equations describe constant rates of change and straight-line relationships. They are used in algebra, finance, science, business, and graphing.
They help model trends, compare variables, and solve many everyday math problems.
Your result shows either the solved value of x or the key features of a line in slope-intercept form. It also includes intercepts, direction, and graph details.
This helps you understand how the line behaves and where it crosses the axes.
A linear equation is an equation that graphs as a straight line and has a highest exponent of 1.
Slope-intercept form is y = mx + b, where m is slope and b is the y-intercept.
Set y equal to 0 and solve the equation for x.
If the x coefficient is 0 in ax + b = c, the equation may have no solution or infinitely many solutions depending on the constants.