Respuesta:
[tex]x + y = 35 \: \: \: ( \times - 4) \\ - 4x - 4y = - 140 \\ 4x + 2y = 116 \\ - 2y = - 24 \\ 2y = 24 \\ y = \frac{24}{2} = 12 \\ x + y = 35 \\ x + 12 = 35 \\ x = 35 - 12 \\ x = 23[/tex]
[tex]x + y = 35 \\ 23 + 12 = 35 \\ 4x + 2y = 116 \\ 4 \times 23 + 2 \times 12 = \\ = 92 + 24 = 116[/tex]
Explicación paso a paso:
buscas 23
espero te sirva
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Respuesta:
[tex]x + y = 35 \: \: \: ( \times - 4) \\ - 4x - 4y = - 140 \\ 4x + 2y = 116 \\ - 2y = - 24 \\ 2y = 24 \\ y = \frac{24}{2} = 12 \\ x + y = 35 \\ x + 12 = 35 \\ x = 35 - 12 \\ x = 23[/tex]
[tex]x + y = 35 \\ 23 + 12 = 35 \\ 4x + 2y = 116 \\ 4 \times 23 + 2 \times 12 = \\ = 92 + 24 = 116[/tex]
Explicación paso a paso:
buscas 23
espero te sirva