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31 December, 01:27

What is 4x+y=4

x+y=-2?

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  1. 31 December, 02:06
    0
    Answer: x = 2, y = - 4

    Step-by-step explanation:

    4x + y = 4 - -> y = 4 - 4x

    Substitute "y" with 4 - 4x into the other equation and solve for "x":

    x + y = - 2

    x + (4 - 4x) = - 2

    4 - 3x = - 2

    - 3x = - 6

    x = 2

    Substitute "x" with 2 into one of the original equations to solve for "y":

    x + y = - 2

    (2) + y = - 2

    y = - 4
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