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27 July, 14:04

Solve the system of equations.

3r + 4y = - 23

X = 3y + 1

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Answers (1)
  1. 27 July, 16:49
    0
    Step-by-step explanation:

    /| x - (4*y) - 3 = 0| 3*y-x+1 = 0

    We try to solve the equation: x - (4*y) - 3 = 0

    x-4*y-3 = 0 / / - x-3

    -4*y = - (x-3) / / : - 4

    y = ( - (x-3)) / (-4)

    y = (3-x) / (-4)

    We insert the solution into one of the initial equations of our system of equations

    We get a system of equations:

    /| 3 * ((3-x) / (-4)) - x+1 = 0| y = (3-x) / (-4)

    (3 * (3-x)) / (-4) - x+1 = 0

    1-1/4*x-9/4 = 0

    -1/4*x-5/4 = 0

    -1/4*x-5/4 = 0 / / + 5/4

    -1/4*x = 5/4 / / : - 1/4

    x = 5/4 / (-1/4)

    x = - 5

    We insert the solution into one of the initial equations of our system of equations

    For y = (3-x) / (-4):

    y = (3+5) / (-4)

    y = 8 / (-4)

    y = - 2

    We get a system of equations:

    /| y = - 2| x = - 5
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