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17 December, 13:15

What is x + y = 12 if x = 2y

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Answers (2)
  1. 17 December, 15:31
    0
    I believe the answer is 4.
  2. 17 December, 16:11
    0
    x=8

    y = 4

    Step-by-step explanation:

    x + y = 12 if x = 2y

    Replace x with 2y in the first equation

    2y+y = 12

    Combine like terms

    3y = 12

    Divide by 3

    3y/3 = 12/3

    y = 4

    Now we can find x

    x=2y

    x=2 (4)

    x = 8
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