Which ordered pair (x, y) satisfies the system of equations above?
Options
A
B
C
D
Answer & Analysis
Answer
A
Analysis
According to the system of equations above, we can have the following: Then, we use the second equation to subtract the first one. We get: 5y = 5. So, y = 1. Now we use y = 1 to substitute into the original first equation, then we get
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