Linear Equation Solver
How It Works
This linear equation solver uses established formulas to provide accurate results.
The basic rule:
- ax + b = c
- x = (c - b) / a
Results are estimates. Consult a professional for critical decisions.
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Explore Allday Everyday Math →Frequently Asked Questions
How do I solve a linear equation?
Isolate x by undoing operations in reverse order. First subtract or add constants to both sides, then divide by the coefficient of x. For ax + b = c: subtract b, then divide by a.
What if the coefficient of x is zero?
If a = 0, the equation becomes b = c. If b equals c, every value of x works (infinitely many solutions). If b does not equal c, there is no solution.
What is a linear equation?
A linear equation is any equation where the variable (x) has an exponent of 1. The graph is always a straight line. Examples: 2x + 5 = 11, x - 3 = 7.