Answer:
try 70
Step-by-step explanation:
It is 3. Because a square root is anything times itself to make an answer. For example:
Answer is in the photo. I can only upload it to a file hosting service. link below!
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Answer:
1. y=5-2x
2. -y=5-2x
3. 
Step-by-step explanation:
1. 2x+y=5
y=5-2x
2. 2x-y=5
-y=5-2x
3. x+2y=5
2y=5-x

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