Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
Chapter Review
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Exercise 47 Page 70

Result: 9w-31
Justification: See solution.

Practice makes perfect

We are asked to simplify the given expression. -8 + 9w +(- 23) First, recall that addition is commutative. This means that, when adding 2 or more terms, the order of addition does not change the result. We can use this fact when simplifying our expression.

Operation Before Simplification After Simplification
Commutative Property of Addition -8 + 9w + ( - 23) 9w+ ( -8)+( - 23)
Add terms 9w +( -8)+( - 23) 9w + ( - 31)
a+(- b)=a-b 9w + ( - 31) 9w - 31

The simplified expression equals 9w-31.