1. Day 5a Combining Like Terms.notebook December 20, 2012
AIM: Simplifying Expressions
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2. Day 5a Combining Like Terms.notebook December 20, 2012
1 (-7x + 2) + (-9x - 12)
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3. Day 5a Combining Like Terms.notebook December 20, 2012
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4. Day 5a Combining Like Terms.notebook December 20, 2012
3 (-9x - 5) – (-3x + 6)
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5. Day 5a Combining Like Terms.notebook December 20, 2012
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7. Day 5a Combining Like Terms.notebook December 20, 2012
Illustrative Mathematics
7.EE Writing Expressions
Alignment 1: 7.EE.A.1
Write an expression for the sequence of operations.
a. Add 3 to x , subtract the result from 1, then double what you have.
b. Add 3 to x , double what you have, then subtract 1 from the result.
Follow‐Up Questions:
1.) Can you simplify the expressions that were created from the problem?
What would the simplified answers be?
2.) Find the value of each for x = 2.
3.) Find the value of each for x = ‐3
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8. Day 5a Combining Like Terms.notebook December 20, 2012
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11. Day 5a Combining Like Terms.notebook December 20, 2012
Before You Leave
Explain your method.
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12. Day 5a Combining Like Terms.notebook December 20, 2012
Homework
None
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