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When two expressions are equal they form an equation. Two given expressions do not always have to be equal, however, and they can be compared against each other using inequalities. There are five major symbols that can be used to represent an inequality: the greater than, less than, greater than or equal to, less than or equal to, and not equal symbols. When the expression on the left side of the inequality has a greater value than on the right, then we use the greater than symbol. If it has a lesser value, then we’ll use the less than symbol. For example, 10 > 9 and 9 < 12. On the other hand, if the expression on the left side of the inequality is at least the value of the expression on the right, then we use greater than or equal to or if it is at most, then we use less than or equal to. And, of course, if the two expressions have different value, then we can simply use the not equal symbol. Learn more about inequalities by helping Wade protect the oceans’ fish population from overfishing. Common Core Reference: CCSS.MATH.CONTENT.6.EE.B.8
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