08-05-2014
Mathematics

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what's the answer to 16x-10y=10
-8x-6y=6

Respuesta :

08-05-2014

[tex]\begin{cases} 16x-10y=10 \\ -8x-6y=6 \ \ /*2\end{cases}\\ \\\begin{cases} 16x-10y=10 \\ -16x-12y=12 \end{cases}\\ + --------\\ -22y=22 \ \ /:(-22) \\ \\ y=-1[/tex]

[tex]16x-10*(-1)=10\\ \\16x+10=10\\ \\16x=10-10\\ \\16x=0 \\ \\x=0 \\ \\ \begin{cases}x=0 \\ y=-1\end{cases}[/tex]

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