amareand amareand

21-12-2014
Mathematics

contestada

Identify the solution(s) of the system of equations, if any.
-2x - 2y = 4
8y = -8x - 16

Respuesta :

lacknock lacknock

21-12-2014

-2x - 2y = 4|:(-2) 8y = -8x - 16|:(-8)
x+y=-2 -y=x+2 x+y=-2x+y=-2
Ansfwer : x-2 y -2

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konrad509 konrad509

21-12-2014

[tex]-2x - 2y = 4|:(-2)\\ 8y = -8x - 16|:(-8)\\\\ x+y=-2\\ -y=x+2\\\\ x+y=-2\\ x+y=-2\\\\ x,y\in \mathbb{R}[/tex]

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