Write the word or phrase that best completes each statement or answers the question.
Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{aligned}
9 x ^ { 2 } + 3 y ^ { 2 } & = 81 \
- 8 x ^ { 2 } - 10 y ^ { 2 } & = 9
\end{aligned}$$

Question

Quizplus · Accepted Answer

The Answer of Write the word or phrase that best completes each statement or answers the question.
Which method should be used to solve the system? Explain your answer, including a description of the first step.
-$$\begin{aligned}
9 x ^ { 2 } + 3 y ^ { 2 } & = 81 \
- 8 x ^ { 2 } - 10 y ^ { 2 } & = 9
\end{aligned}$$

Write the Word or Phrase That Best Completes Each Statement 9x2+3y2=81−8x2−10y2=9\begin{aligned}9 x ^ { 2 } + 3 y ^ { 2 } & = 81 \\- 8 x ^ { 2 } - 10 y ^ { 2 } & = 9\end{aligned}9x2+3y2−8x2−10y2​=81=9​

Write the Word or Phrase That Best Completes Each Statement $\begin{aligned}9 x ^ { 2 } + 3 y ^ { 2 } & = 81 \\- 8 x ^ { 2 } - 10 y ^ { 2 } & = 9\end{aligned}$