# Solving Equations of the First Degree with One Unknown

A first degree equation with one unknowns can be expressed as

*a _{1} x + c_{1} = a_{2} x + c_{2} (1)*

The equation can be transformed to

*x = (a _{1} - a_{2}) / (c_{2} - c_{1}) (1b)*

### Example - Solving a First Degree Equation with One Unknown

*22 x - 10 = 12 x + 20 *

*22 x - 12 x = 20 - (-10)*

*(22 - 12) x = 30*

*x = 30 / 10*

*x = 3*

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