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Consider the system of equations \begin{align*} 5x + y &= 31, \\ -3x + 4y &= -37. \end{align*} Solve the first equation for $y$ in terms of $x.$ Enter your answer in the form "$y = \dotsb.$"

 Oct 8, 2022
 #1
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By substitution, y = -2x - 15.

 Oct 8, 2022

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