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Envision Math 2.0: Grade 7, Volume 1

EM

Envision Math 2.0: Grade 7, Volume 1 View details

4. Expand Expressions

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Exercise 7 Page 211

Recall the Distributive Property.

See solution.

Practice makes perfect

We want to simplify the given expression. To do it, we will use the Distributive Property. We will distribute 3 to the terms inside the parentheses.

3(n+7)

Distribute 3

3(n)+3(7)

Multiply

3n+21

Since 3n and 21 are not like terms, the expression cannot be simplified further.

Subchapter links

Do You Understand? p.210

Do You Know How? p.210

Practice & Problem Solving p.211-212

Assessment Practice p.212