Solving the equation X+y=8 and 2x-y =7, we get

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Solving the equation X+y=8 and 2x-y =7, we get

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Maria 6 days 2021-11-24T21:27:14+00:00 2 Answers 0 views 0

Answers ( )

  1. Ava
    0
    2021-11-24T21:28:57+00:00

    Answer:

    x=5

    Step-by-step explanation:

    x+y=8  ___(1)

    2x-y=7 ___-(2)

    by elimination method,

    (1)+(2),

    3x=15

    x=5

  2. Ava
    0
    2021-11-24T21:29:02+00:00

    System of Linear Equations entered :

    [1] x + y = 8

    [2] 2x – y = 7

    Graphic Representation of the Equations :

    y + x = 8 y + 2x = 7

    Solve by Substitution :

    // Solve equation [1] for the variable y

    [1] y = -x + 8

    // Plug this in for variable y in equation [2]

    [2] 2x – (-x +8) = 7

    [2] 3x = 15

    // Solve equation [2] for the variable x

    [2] 3x = 15

    [2] x = 5

    // By now we know this much :

    x = 5

    y = -x+8

    // Use the x value to solve for y

    y = -(5)+8 = 3

    Solution :

    {x,y} = {5,3}

    I hope you are understand my solution

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