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4 February, 17:03

6y-8x=14 and y=x+5, What is the solution to this system of equations?

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Answers (2)
  1. 4 February, 19:48
    0
    6y-8x=14

    Replace y with y=x+5

    6 (x+5) - 8x = 14

    Simplify

    6x+30-8x=14

    Add common factors

    -2x+30=14

    Subtract 30 from both side

    -2x = - 16

    Divide both sides by - 2

    x=8

    Now solve for y by replacing x with 8

    y=8+5

    y=13

    Solution to the system of equations is (8,13)
  2. 4 February, 20:25
    0
    6y-8x=14 (1)

    Y=x+5 (2)

    6y-8x=14 (3) * 1

    Y-x=5 (4) * 6

    6y-8x=14

    6y-6x=30

    -2x=16

    X=8

    Put x into equation 1

    6y-8x=14

    6y-8 (8) = 14

    6y-64=14

    6y=14+64

    6y=78

    6y=78

    Y=13
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