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Big Ideas Math: Modeling Real Life, Grade 6

BI

Big Ideas Math: Modeling Real Life, Grade 6 View details

4. Writing Equations in Two Variables

Finish the assignment

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Exercise 28 Page 270

Substitute (4,5) into the given equation and then simplify.

Yes

Practice makes perfect

We can determine whether (4,5) is a solution by substituting it into the equation and simplifying using the order of operations.

y=2x-3

x= 4, y= 5

5? =2( 4)-3

Multiply

5? = 8-3

Subtract term

5= 5

Since both sides are equal, (4,5) is a solution.

Subchapter links

Try It p.266-268

Self-Assessment for Concepts & Skills p.268

Self-Assessment for Problem Solving p.269

Review & Refresh p.270

Concepts, Skills, & Problem Solving p.270-272