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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 9 Page 113

Substitute the given values into the expression and simplify as much as possible.

- 8

Practice makes perfect
To evaluate the given expression for x = 4, y= - 6, and z= - 3, we should substitute these values into the expression and simplify as much as possible.
3x-2y/z
SubstituteValues

Substitute values

3( 4)-2( - 6)/- 3
MultPosNeg

a(- b)=- a * b

3(4)-(- 2* 6)/- 3
Multiply

Multiply

12-(- 12)/- 3
SubNeg

a-(- b)=a+b

12+12/- 3
AddTerms

Add terms

24/- 3
MoveNegDenomToFrac

Put minus sign in front of fraction

- 24/3
â–Ľ
Calculate quotient
ReduceFrac

a/b=.a /3./.b /3.

- 24/3/3/3
CalcQuot

Calculate quotient

- 8/1
DivByOne

a/1=a

- 8
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arrow_right Try It p.110-111
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Try It 2 (Page 110)
Try It 3 (Page 110)
Try It 4 (Page 110)
Try It 5 (Page 110)
Try It 6 (Page 110)
Try It 7 (Page 111)
Try It 8 (Page 111)
arrow_right Self-Assessment for Concept & Skills p.111
Self-Assessment for Concept & Skills 9 (Page 111)
Self-Assessment for Concept & Skills 10 (Page 111)
Self-Assessment for Concept & Skills 11 (Page 111)
Self-Assessment for Concept & Skills 12 (Page 111)
Self-Assessment for Concept & Skills 13 (Page 111)
Self-Assessment for Concept & Skills 14 (Page 111)
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arrow_right Self-Assessment for Problem Solving p.112
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arrow_right Review & Refresh p.113
Review & Refresh 1 (Page 113)
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Review & Refresh 9 (Page 113)
arrow_right Concept, Skills, & Problem Solving p.113-114
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