Solving Inequalities with Addition and Subtraction
Learning Objective
I can solve inequalities by using addition and subtraction.
Key Concepts
When graphing inequalities with < or >, use an open circle, but when graphing ≤ or ≥, use a closed circle.
The phrase "no more than" translates to less than or equal to, while "at least" translates to greater than or equal to.
To solve inequalities with addition and subtraction, use the same steps as solving equations, but make sure to rewrite the inequality with the variable first.
Practice Questions
This lesson includes 11 practice questions to reinforce learning.
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1. What type of circle is used on a number line to graph an inequality with a 'less than or equal to' sign?
2. Solve the inequality: x + 5 < 12
3. What key phrase indicates the 'greater than or equal to' inequality?
...and 8 more questions
Educational Video
5 1 Solving Inequalities with Addition and Subtraction
Megan Tompkins