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Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

2. Solving Systems of Linear Equations by Substitution

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Exercise 36 Page 228

Remove the parentheses and combine like terms.

3x-11

Practice makes perfect

To find the sum we can combine like terms. We will remove the parentheses and then group the like terms.

(x-4)+(2x-7)

Remove parentheses

x-4+2x-7

CommutativePropAdd

Commutative Property of Addition

x+2x-4-7

Add and subtract terms

3x-11

Our expression cannot be simplified any further. Therefore, 3x-11 is the sum we were looking for.

Subchapter links

Communicate Your Answer p.223

Monitoring Progress p.224-226

Exercises p.227-228