Respuesta:
[tex]3x + y = 7 \: \\ y = 7 - 3x \\ \\ 11x + \frac{y}{2} = 7 \\ y = 2(7 - 11x) \\y = 14 - 22x \\ \\ 7 - 3x = 14 - 22x \\ 19x = 7 \\ x = \frac{7}{19} \\ \\ 3x + y = 7 \\ 3( \frac{7}{19}) + y = 7 \\ \frac{21}{19} = 7 - y \\ 21 = 113 - 19y \\ 19y = 92 \\ y = \frac{92}{19} [/tex]
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Respuesta:
[tex]3x + y = 7 \: \\ y = 7 - 3x \\ \\ 11x + \frac{y}{2} = 7 \\ y = 2(7 - 11x) \\y = 14 - 22x \\ \\ 7 - 3x = 14 - 22x \\ 19x = 7 \\ x = \frac{7}{19} \\ \\ 3x + y = 7 \\ 3( \frac{7}{19}) + y = 7 \\ \frac{21}{19} = 7 - y \\ 21 = 113 - 19y \\ 19y = 92 \\ y = \frac{92}{19} [/tex]