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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 40 Page 228

Begin with the Distributive Property.

22m-4

Practice makes perfect

To simplify the given expression, we will use the Distributive Property.

4(m+2)+3(6m-4)

Distribute 4

4(m)+4(2)+3(6m-4)

Distribute 3

4(m)+4(2)+3(6m)-3(4)

Multiply

4m+8+18m-12

CommutativePropAdd

Commutative Property of Addition

4m+18m+8-12

Add and subtract terms

22m-4

As 22m and 4 are not like terms, our expression cannot be simplified any further. Therefore, 22m-4 is the sum we were looking for.

Subchapter links

Communicate Your Answer p.223

Monitoring Progress p.224-226

Exercises p.227-228