Are You Ready to Learn How to Solve Inequalities?

Now that you've learned several methods for solving one-step equations, are you wondering how to solve inequalities? Luckily, most of the steps used to solve equations, are also used to solve inequalities.

In this lesson, we will focus on solving one-step addition and subtraction inequalities.

As you begin learning how to solve one-step inequalities, you may also be asked to graph your answer. If the inequality that you are solving contains one variable, then you will represent your answer on a number line.

You will begin by representing your answer on the number line with a closed circle or an open circle. Take a look.....

how to solve inequalities

If the circle is open, then that means that the answer is less than or greater than this number, BUT NOT equal. Only if the circle is closed, can the answer be equal to this answer.

Take a look at the following examples on graphing inequalities.

Example 1

how to solve inequalities

solving inequalities

Now we will take a look at a few examples of how you can solve inequalities. We will also graph the solution on a number line. Take a look at our first example. Notice how the same steps that are used to solve equations, are also used to solve inequalities.

Example 2

inequality example

Now we'll take a look at one more example that contains a negative integer. Again, we use the exact same process that we use when solving equations.

Example 3

inequality example

Not too bad, right? When learning how to solve inequalities that deal with addition and subtraction, follow the same process as with equations. The only difference is knowing how to represent your final answer on a number line.

In our next lesson, we will continue working with one-step inequalities, but this time we will look at special rules when multiplying or dividing.

Pre-Algebra Students

Your next lesson is on solving one-step inequalities that involve multiplication or division.

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