$$\begin{array} { l } x ^ { 2 } + y ^ { 2 } = 36 \\x ^ { 2 } - y ^ { 2 } = 9\end{array}$$

question 116

Essay

$$\begin{array} { l } x ^ { 2 } + y ^ { 2 } = 36 \\x ^ { 2 } - y ^ { 2 } = 9\end{array}$$
Explain the steps you would use to solve this system by the elimination method.

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