A) \[x+y=13\]
B) \[x-y=13\]
C) \[2x+3y=13\]
D) \[{{x}^{2}}+{{y}^{2}}=15\]
Correct Answer: A
Solution :
By definition, \[\frac{6+y+7+x+14}{5}=8.\] or \[27+x+y=40\] or \[x+y=13.\]
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