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**Translating Algebraic Expressions**

Math Translating Algebraic Expressions By: Darala Hartwell

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Remember: 1. A variable is a letter used to represent an unknown value. 2. A numerical expression includes numbers and operations. 3. An algebraic expression contains variables, numbers and operations.

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**x a b y Variables are letters that represent unknown values. How did I**

What do I represent? How did I get here? What am I? x a I am so unknown b y Variables are letters that represent unknown values.

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**Numerical Expressions**

Numerical expressions include numbers and operation symbols.

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**n Algebraic Expressions An algebraic expression includes: Numbers**

Operations and Variables n

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**Let’s look at examples of a numerical expressions:**

32 8 7(4)

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**Let’s look at examples of algebraic expressions.**

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**Algebraic expressions like phrases in English are incomplete. **

Equations Algebraic expressions like phrases in English are incomplete. An equation, like a sentence, is complete. You will notice the inclusion of a very special symbol. An equation is made up of numbers, variables, and an equal sign. 3b + 5 = 26

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**Rewrite these verbal expressions as algebraic expressions.**

1. the sum of s and 12 s+12 2. the product of 15 and some number 15n 3. n to the seventh power n7 4. 56 increased by twice a number 56+2a 5. Four less than a number n-4

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**Let’s write equations for these sentences.**

1. Forty-three less than n is equal to 35. n – 43 = 35 2. Seven more than y is 13. y + 7 = 13

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The End

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Copyright © 2010 Pearson Education, Inc. All rights reserved. 1.2 – Slide 1.

Copyright © 2010 Pearson Education, Inc. All rights reserved. 1.2 – Slide 1.

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