ultilizando o método que melhor lhe covier , resolva o seguinte sistema de equações?

Chaves

3x + y = -16

2x - 3y = -7

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  • 1 decade ago

    3x+y=-16--->y=-16-3x

    2x-3y=-7

    2x-3(-16-3x)=-7

    2x+48+9y=-7

    11x=-7-48

    11x=-55

    x=-55/11

    x=-5

    y=-16-3x

    y=-16-3(-5)

    y=-16+15

    y=-1

  • Anonymous
    1 decade ago

    3xy-16

    -1xy-7

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