-3x+7y=5x+2y find the missing value to this (-5, )

Question

-3x+7y=5x+2y find the missing value to this (-5, )

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Kinsley 2 weeks 2021-10-11T23:18:23+00:00 2 Answers 0

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  1. Ava
    0
    2021-10-11T23:19:52+00:00

    Answer:

    put x=-5 to get the corresponding value of y

    -3(-5)+7y=5(-5)+2y \\ 5y=--40 \\ \implies y=-8

    so that point is (-5,-8)

    0
    2021-10-11T23:20:12+00:00

    – 3x + 7y = 5x + 2y

    – 3(-5) + 7y = 5(-5) + 2y

    15 + 7y = – 25 + 2y

    7y – 2y = – 25 – 15

    5y = – 40

    y = – 40 : 5

    y = – 8

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