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13 May, 09:36

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

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  1. 13 May, 11:33
    0
    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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