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julie001

  • 2 years ago

Dom wrote the following steps to simplify the expression (x − y + 5y). Step 1: x + 5y − y; using commutative property of addition Step 2: x + (5y − y); using associative property of addition Step 3: x − (5 + 1)y; using distributive property of addition Step 4: x − (6)y; simplifying

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  1. julie001
    • 2 years ago
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    Which step was incorrect, and what should be the correct step that Dom should use? Step 3 was incorrect. Correct step: x + (5 − 1)y; using distributive property of addition Step 2 was incorrect. Correct step: x − (5y − y); using associative property of addition Step 2 was incorrect. Correct step: x + (5y + y); using associative property of addition Step 3 was incorrect. Correct step: x − (−5 − 1)y; using distributive property of addition

  2. AnanyaManas
    • 2 years ago
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    step 3 is incorrect. Correct step: x + (5 − 1)y; using distributive property of addition

  3. julie001
    • 2 years ago
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    how?

  4. AnanyaManas
    • 2 years ago
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    what he did wrong is that he has taken -1 common outside in step 3. then it would have to be x-(-5+1) in step 3.

  5. julie001
    • 2 years ago
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    oh okay thanks

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