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4 August, 12:23

How do you solve: x-y=2

4x-3y=11?

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Answers (2)
  1. 4 August, 12:41
    0
    X - y = 2

    4x - 3y = 11.

    Using Elimination method, eliminating x, multiply equation (i) by 4. Because of the 4 in the second equation.

    x - y = 2 ... (x4)

    4x - 3y = 11.

    4x - 4y = 8

    4x - 3y = 11.

    The first minus the second.

    (4x - 4x) - 4y - - 3y = 8-11

    -4y + 3y = - 3

    -y = - 3. Divide both sides by - 1

    y = 3.

    Substitute this value into the very first equation

    x - y = 2, y = 3

    x - 3 = 2

    x = 2 + 3 = 5.

    Therefore x = 5, y = 3.
  2. 4 August, 12:44
    0
    -4[x-y=2[

    4x-3y=11

    -4x+4y=-8

    0+y=3

    y=3 now, i am going to find x value. put 3 on y value to get x value

    i want use easy way because x-y=2 is easy to get x value.

    x-3=2

    x=2+3

    x=5 right now, i am gonna check my answer if it's wrong

    i am going to take x-y=2 because its easy to check my answer

    x-y=2

    x = 5, y=3 so i am gonna check it.

    5-3=2 so the answer is x=5, y=3
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