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Solve the System by the Substitution or Elimination Method (7x2+y2=343x2+y2=49)\left( \begin{array} { r l } 7 x ^ { 2 } + y ^ { 2 } & = 343 \\x ^ { 2 } + y ^ { 2 } & = 49\end{array} \right)

Question 47

Multiple Choice

Solve the system by the substitution or elimination method. (7x2+y2=343x2+y2=49) \left( \begin{array} { r l } 7 x ^ { 2 } + y ^ { 2 } & = 343 \\x ^ { 2 } + y ^ { 2 } & = 49\end{array} \right)


A) ( −- 7, 0) , (7, 0)
B) ( −- 7, 0) , (0, 7)
C) (0, −- 7) , (7, 0)
D) (0, −- 7) , (0, 7)

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