−9x−6y=15 9x−10y=145 ​ y= x=

Question

−9x−6y=15
9x−10y=145

y=
x=

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Khải Quang 1 year 2021-08-29T20:18:44+00:00 1 Answers 17 views 0

Answers ( )

    0
    2021-08-29T20:20:10+00:00

    Answer:

    Step-by-step explanation:

    Adding the two equations together gives you

    9x-10y-9x-6y=145+15

    -16y=160

    y=-10, using this value in 9x-10y=145 gives you

    9x-10(-10)=145

    9x+100=145

    9x=45

    x=5

    So y=-10 and x=5

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