In Exercises 1318, solve the system algebraically. Support your answer graphically.x -
Chapter 7, Problem 7.1.1.27(choose chapter or problem)
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In Exercises 13–18, solve the system algebraically. Support your answer graphically.
\(\begin{aligned} x^{2}+y^{2} & =9 \\ x-3 y & =-1 \end{aligned}\)
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