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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 31 Page 270

Substitute (3,15) into the given equation and then simplify.

Yes

Practice makes perfect
We can determine whether (3,15) is a solution by substituting it into the equation and simplifying using the order of operations.
y+3=6x
SubstituteII

x= 3, y= 15

15+3? =6( 3)
Multiply

Multiply

15+3? =18
AddTerms

Add terms

18=18
Since both sides are equal, (3,15) is a solution.
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arrow_right Try It p.266-268
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arrow_right Self-Assessment for Problem Solving p.269
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