How many solutions does the following system have? x + y=7 - x - y = 7

Skozin asked Jan 27, 2023

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32 votes

How many solutions does the following system have?
x + y=7
- x - y = 7

Skozin asked Jan 27, 2023

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17 votes

Answer: A
-x - y = 7
-(7 - y) - y = 7
-7 + y - y = 7
y - y = 14
0 = 14

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