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Big Ideas Math: Modeling Real Life, Grade 6
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Big Ideas Math: Modeling Real Life, Grade 6 View details
4. Writing Equations in Two Variables
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Exercise 9 Page 268

Substitute (4,20) into the given equation and then simplify.

Yes

Practice makes perfect
We can determine whether (4,20) is a solution by substituting it into the equation and simplifying using the order of operations.
y=3x+8
SubstituteII

x= 4, y= 20

20? =3( 4)+8
Multiply

Multiply

20? =12+8
AddTerms

Add terms

20=20
Since both sides are equal, (4,20) is a solution.
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arrow_right Try It p.266-268
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Try It 2 (Page 266)
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Try It 4 (Page 267)
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arrow_right Self-Assessment for Concepts & Skills p.268
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arrow_right Self-Assessment for Problem Solving p.269
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arrow_right Review & Refresh p.270
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arrow_right Concepts, Skills, & Problem Solving p.270-272
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