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22 May, 00:52

Y = 5x + 2

4x - y = 0

Is (2,12) a solution of the system?

+3
Answers (2)
  1. 22 May, 01:51
    0
    no

    Step-by-step explanation:

    y = 5x + 2

    4x - y = 0

    then

    4x - (5x + 2) = 0

    -x-2=0

    x = - 2

    replacing in y = 5x + 2

    y=5 (-2) + 2

    y=-8

    Ans. (-2,-8)
  2. 22 May, 02:53
    0
    No

    Step-by-step explanation:

    if you plug the top equation into the bottom equation, you would get

    4x - (5x+2) = 0

    4x-5x-2=0

    -x=2

    x=-2

    x would equal - 2 which would then make y = - 8
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