Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{array} { r }
7 x ^ { 2 } + 7 y ^ { 2 } = 81 \
- 10 x ^ { 2 } - 9 y ^ { 2 } = 49
\end{array}$$

Question

Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{array} { r } 
7 x ^ { 2 } + 7 y ^ { 2 } = 81 \
- 10 x ^ { 2 } - 9 y ^ { 2 } = 49
\end{array}$$

Quizplus · Accepted Answer

The Answer of Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{array} { r } 
7 x ^ { 2 } + 7 y ^ { 2 } = 81 \
- 10 x ^ { 2 } - 9 y ^ { 2 } = 49
\end{array}$$

Which Method Should Be Used to Solve the System? Explain 7x2+7y2=81−10x2−9y2=49\begin{array} { r } 7 x ^ { 2 } + 7 y ^ { 2 } = 81 \\- 10 x ^ { 2 } - 9 y ^ { 2 } = 49\end{array}7x2+7y2=81−10x2−9y2=49​

Which Method Should Be Used to Solve the System? Explain $\begin{array} { r } 7 x ^ { 2 } + 7 y ^ { 2 } = 81 \\- 10 x ^ { 2 } - 9 y ^ { 2 } = 49\end{array}$