If (x, -4) is a solution to the equation 4x-5y=8, what is the value of x?

Question

If (x, -4) is a solution to the equation 4x-5y=8, what is the value of x?

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Arianna 1 month 2021-12-26T09:02:06+00:00 1 Answer 0 views 0

Answers ( )

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    2021-12-26T09:04:04+00:00

    Answer:

    x=-3

    Step-by-step explanation:

    4x-5y=8

    Substitute the value -4 in for y

    4x -5(-4) = 8

    4x +20 = 8

    Subtract 20 from each side

    4x+20-20 = 8-20

    4x = -12

    Divide each side by 4

    4x/4 = -12/4

    x = -3

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45:7+7-4:2-5:5*4+35:2 =? ( )