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Mathematics, 22.05.2020 08:02 PENTALIZARD8179

¿Cuál es el resultado de restar la segunda ecuación de la primera?
\ begin {alineado} 2x + 7y & = -8 2x-5y & = -1 \ end {alineado}
2 x+7 y
2 x-5 y


=- 8
=- 1

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¿Cuál es el resultado de restar la segunda ecuación de la primera?
\ begin {alineado} 2x + 7y...
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