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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 12 Page 200

Use the Multiplication Property of Equality to eliminate the division.

x=140

Practice makes perfect

To solve the equation, we have to isolate x on one side. Using the Multiplication Property of Equality, we will multiply both sides of the equation by 4. This will eliminate the denominator of the fraction and isolate x.

35=x/4

LHS * 4=RHS* 4

35*4=x/4*4

FracMultDenomToNumber

a/4* 4 = a

35*4=x

Multiply

140=x

Rearrange equation

x=140

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