**> Equations and Inequalities <**

**Equations and Inequalities**

**An equation** is a mathematical statement, in symbols, that two

things are the same (or equivalent). Equations are written with

an equal sign, as in 2 + 3 = 5.

Number sentences containing the equal sign (=)

symbol are equations.

**equation examples: 8 + 9 =17 7 = 7 15 - 9 = 10 ?**

An equation could be true are false. As you know 15 - 9 = 6 not 10

**Inequalities**

An Inequality is a statement about the relative size or order of

two objects. Could be

greater than > less than < or not equal to ≠

Example: 4 x 4 < 20 This inequality says 4 times 4 is less than

20.

Number sentences that do not contain an equal sign

(=) are called inequalities

**Inequalities examples:**

**7 + 9 < 20 20 > 9 * 3 ? 25 ≠ 4 * 5 **

Just like equations, Inequalities could be true are false. As you

know the inequality 20 > 9 x 3 is false, because 9 x 3 equals 27

more inequalities signs

≥ greater than or equal to

≤ less than or equal to