Solve the system using the substitution method 2x-7y=13 3x+y=8

Question

Solve the system using the substitution method 2x-7y=13 3x+y=8

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Minh Khuê 6 months 2021-08-10T15:02:16+00:00 1 Answers 17 views 0

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  1. thucuc
    0
    2021-08-10T15:03:55+00:00
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    Answer:

    x=3 and y= -1

    Step-by-step explanation:

    2x-7y=13

    3x+y=8

    Isolate y to get your third equation

    y=8-3x

    Sub third equation into first

    2x-7(8-3x)=13

    2x-56+21x= 13

    23x= 13+56

    x= 69/23

    x=3

    Sub x into third equation to get y value

    y=8-3(3)

    y= -1

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