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11-03-2017
Mathematics

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Use the echelon method to solve the following system of two equations in two unknowns
4x+7y=-25
2x-7y=-23

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Аноним Аноним

11-03-2017

\begin{cases}4 x + 7 y = -{25} \\ 2 x - 7 y = -{23} \\ \end{cases}

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