Question:

Solve the systems of equations?

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4x+2y=14

x-2y=1

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3 ANSWERS


  1. x = 1 + 2y

    4 (1 + 2y) + 2y = 14

    4 + 8y + 2y = 14

    10 y  = 10

    y = 1

    x = 1 + 2

    x = 3

    x = 3 , y = 1


  2. 4x+2y=14

    x-2y=1

    --------------+

    5x=15

    x=3

    x-2y=1

    3-2y=1

    2y=2

    y=1

  3. 4x+2y=14

    x  - 2y=1

    -------------

    5x=15..........x=3

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