5x +7 y=-17 4x – 3y = -5 Substitute.

Question

5x +7 y=-17
4x – 3y = -5
Substitute.

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Mộc Miên 4 years 2021-08-27T15:19:30+00:00 1 Answers 13 views 0

Answers ( )

  1. minhkhang
    0
    2021-08-27T15:20:31+00:00
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    Answer:

    (x,y) = (-2, -1)

    Step-by-step explanation:

    We start off by substituting the value of “x”.

    5x+7y=-17

    x=-\frac{5}{4} + \frac{3}{4}y

    We then solve 55(-\frac{5}{4}+\frac{3}{4}y ) +7y= -17

    y=-1 *Substitute the value of “y”

    x= –-\frac{5}{4}+\frac{3}{4}x(-1)

    x=-2

    \left \{ {{-17=-17} \atop {-5=-5}} \right. This works.

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