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18-05-2018
Mathematics

contestada

what does x equal
5x+2y=3
1x+2y=6

Respuesta :

18-05-2018

[tex]\underline{-\left\{\begin{array}{ccc}5x+2y=3\\x+2y=6\end{array}\right }\ \ \ \ |subtract\ both\ sides\\\\4x=-3\ \ \ |:4\\\\x=-\dfrac{3}{4}\to x=-0.75[/tex]

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