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22 March, 14:48

X=5-3Y

X=2Y-10

Whats the answer

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Answers (2)
  1. 22 March, 15:01
    0
    X = 5 - 3y

    x = 2y - 10

    5 - 3y = 2y - 10

    + 3y + 3y

    5 = 5y - 10

    + 10 + 10

    15 = 5y

    5 5

    3 = y

    x = 2y - 10

    x = 2 (3) - 10

    x = 6 - 10

    x = - 4

    (x, y) = (-4, 3)
  2. 22 March, 17:18
    0
    Y=3

    x=-4

    you have to use substitution. so instead of the equations having two variables, they will now have one.

    5-3y=2y-10 after solving for y, plug the answer in any of the equations and you will find x.
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