Answer:

Step-by-step explanation:
Given the expression




Cancel the common factor: x+y

Thus,

Answer: 
<u>Step-by-step explanation:</u>

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Answer: 
<u>Step-by-step explanation:</u>

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Answer: 
<u>Step-by-step explanation:</u>

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Answer: 
<u>Step-by-step explanation:</u>

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Answer: 
<u>Step-by-step explanation:</u>

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Answer:
x=-3
Step-by-step explanation:
2x+7=4+x
2x-x+7=4
x+7=4
x=4-7
x=-3
Answer:
1. D
Step-by-step explanation: