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25 June, 21:55

Solve the system of equations.

- 10x + 3y = 5

2 = y-4

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Answers (1)
  1. 25 June, 22:42
    0
    Step-by-step explanation:

    10x+3y=5; x=y-4

    Solution:

    {x, y} = {1,5}

    System of Linear Equations entered:

    [1] - 10x + 3y = 5

    [2] x - y = - 4

    Graphic Representation of the Equations:

    3y - 10x = 5 y + x = - 4

    Solve by Substitution:

    / / Solve equation [2] for the variable x

    [2] x = y - 4

    / / Plug this in for variable x in equation [1]

    [1] - 10• (y - 4) + 3y = 5

    [1] - 7y = - 35

    / / Solve equation [1] for the variable y

    [1] 7y = 35

    [1] y = 5

    / / By now we know this much:

    x = y-4

    y = 5

    / / Use the y value to solve for x

    x = (5) - 4 = 1

    Solution:

    {x, y} = {1,5}

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