Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{aligned}
x ^ { 2 } + y ^ { 2 } & = 49 \
- 6 x - 4 y & = 7
\end{aligned}$$

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The Answer of Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{aligned}
x ^ { 2 } + y ^ { 2 } & = 49 \
- 6 x - 4 y & = 7
\end{aligned}$$

Which Method Should Be Used to Solve the System? Explain x2+y2=49−6x−4y=7\begin{aligned}x ^ { 2 } + y ^ { 2 } & = 49 \\- 6 x - 4 y & = 7\end{aligned}x2+y2−6x−4y​=49=7​

Which Method Should Be Used to Solve the System? Explain $\begin{aligned}x ^ { 2 } + y ^ { 2 } & = 49 \\- 6 x - 4 y & = 7\end{aligned}$