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Big Ideas Math: Modeling Real Life, Grade 7

BI

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

3. Identifying Proportional Relationships

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Exercise 11 Page 200

Use the Division Property of Equality to eliminate the multiplication.

x=75

Practice makes perfect

To solve the equation, we have to isolate x on one side. Using the Division Property of Equality, we will divide both sides of the equation by 8. This will eliminate the multiplication and isolate x.

150=2x

LHS * 2=RHS* 2

150/2=2x/2

MovePartNumRight

a* b/c=a/c* b

150/2 = 2/2* x

Calculate quotient

75 = 1* x

Identity Property of Multiplication

75=x

Rearrange equation

x=75

Subchapter links

Try It p.196-198

Self-Assessment for Concept & Skills p.198

Self-Assessment for Problem Solving p.199

Review & Refresh p.200

Concept, Skills, & Problem Solving p.200-202