Solve linear equations in the form ax + b = c for the unknown variable x. Get step-by-step solutions instantly.
Enter the coefficients for equation: ax + b = c
For a linear equation in the form ax + b = c:
x = (c - b) / a
Note: If a = 0, the equation becomes b = c, which either has no solution or infinitely many solutions depending on whether b equals c.
Solve: 2x + 3 = 11
x = (11 - 3) / 2
x = 8 / 2
x = 4
Solve: 5x - 7 = 18
x = (18 + 7) / 5
x = 25 / 5
x = 5
Solve: 3x + 12 = 0
x = (0 - 12) / 3
x = -12 / 3
x = -4
Solve: -2x + 6 = 14
x = (14 - 6) / -2
x = 8 / -2
x = -4
Solve: x + 2 = 5
x = (5 - 2) / 1
x = 3 / 1
x = 3