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Big Ideas Math: Modeling Real Life, Grade 7

BI

Big Ideas Math: Modeling Real Life, Grade 7 View details

4. Simulations

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Exercise 5 Page 311

Be careful with negatives when distributing.

-3p+8

Practice makes perfect

We want to simplify the given expression. To do it, we will use the Distributive Property. We will distribute -1 to the terms inside the parentheses.

- 1(3p-8)

Distribute - 1

-1(3p)-(- 1)8

(- a)b = - ab

-3p-(-8)

a-(- b)=a+b

-3p+8

The expression cannot be simplified further because -3p and 8 are not like terms.

Subchapter links

Try It p.308-309

Self-Assessment for Concept & Skills p.309

Self-Assessment for Problem Solving p.310

Review & Refresh p.311

Concept, Skills, & Problem Solving p.311-312