Explicación paso a paso:
[tex]x - y = 1 \\ \frac{x}{2y} = - 1 \\ x - y = 1 \\ x = - 2y \\ - 2y - y = 1\\ - 3y = 1\\ y = \frac{ 1}{ - 3} = \frac{-1}{3} \\ x - y = 1 \\ x - \frac{-1}{3} = 1 \\ x = 1 - \frac{1}{3} = \frac{3 - 1}{3} = \frac{2}{3 \: } [/tex]
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Explicación paso a paso:
[tex]x - y = 1 \\ \frac{x}{2y} = - 1 \\ x - y = 1 \\ x = - 2y \\ - 2y - y = 1\\ - 3y = 1\\ y = \frac{ 1}{ - 3} = \frac{-1}{3} \\ x - y = 1 \\ x - \frac{-1}{3} = 1 \\ x = 1 - \frac{1}{3} = \frac{3 - 1}{3} = \frac{2}{3 \: } [/tex]