Question
In Exercises 11 - 20, solve the system by the method of substitution. Check your solution(s) graphically. $ \left\{\begin{array}{l} \hspace{1cm} x + y = 0\\x^3 - 5x - y = 0\end{array}\right. $
Step 1
Step 1: First, we solve the first equation for $y$: \[x + y = 0 \implies y = -x\] Show more…
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