## SOLVING LINEAR EQUATIONS Recall the following:

• A linear equation is a polynomial of degree 1.

• In order to solve for the unknown variable, you must isolate the variable

• In the order of operations, multiplication and division are completed before addition and subtraction.

Example 1: Solve for x in the following equation.

x - 4 = 10

Add 4 to both sides of the equation:

x = 14

The answer is x = 14

Check the solution by substituting 14 in the original equation for x. If the left side of the equation equals the right side of the equation after the substitution, you have found the correct answer.

### If you would like to test yourself by working some problems similar to this example, click on Problem

If you would like to go back to the equation Table of contents, click on Contents. [Algebra] [Trigonometry]
[Geometry] [Differential Equations]
[Calculus] [Complex Variables] [Matrix Algebra] S.O.S MATHematics home page

Do you need more help? Please post your question on our S.O.S. Mathematics CyberBoard. Author:Nancy Marcus