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Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
4. Factorizing Expressions
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Exercise 24 Page 113

Rewrite each term as a product of the coefficient of the variable term and some other factor.

1/7(a+1)

Practice makes perfect
We want to factor out the coefficient of the variable term — 17. Let's rewrite each term as a product of 17 and some other factor. To do so, note that every number equals itself multiplied by 1. 1{\dfrac{1}{7}a &= {\color{#FD9000}{\dfrac{1}{7}}} \cdot a \\[0.5em] \dfrac{1}{7} &= {\color{#FD9000}{\dfrac{1}{7}}} \cdot 1 } Now we can use the Distributive Property to factor the expression. Let's go!
1/7a+ 1/7
SplitIntoFactors

Split into factors

1/7 * a+ 1/7
IdPropMult

Identity Property of Multiplication

1/7 * a+ 1/7 * 1
FactorOut

Factor out 1/7

1/7(a+1)
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arrow_right Try It p.110-111
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arrow_right Self-Assessment for Concept & Skills p.111
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arrow_right Self-Assessment for Problem Solving p.112
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arrow_right Review & Refresh p.113
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