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16x - 4y = 3 y = 4x + 7

User Bob Paulin
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y in equation 1


\begin{gathered} 16x-4\mleft(4x+7\mright)=3 \\ 16x-16x-28=3 \\ -28=3 \end{gathered}

-28=3 is false, therefore the system of equations has no solution

User Zhenyi Zhang
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