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18 March, 21:14

Solve the system of equations.

3x + 4y = - 23

2 = 3y + 1

y =

x =

+2
Answers (1)
  1. 18 March, 21:19
    0
    x = - 73/9, y = 1/3

    Step-by-step explanation:

    Solve the following system:

    {3 x + 4 y = - 23 | (equation 1)

    2 = 3 y + 1 | (equation 2)

    Express the system in standard form:

    {3 x + 4 y = - 23 | (equation 1)

    0 x - 3 y = - 1 | (equation 2)

    Multiply equation 2 by - 1:

    {3 x + 4 y = - 23 | (equation 1)

    0 x+3 y = 1 | (equation 2)

    Divide equation 2 by 3:

    {3 x + 4 y = - 23 | (equation 1)

    0 x+y = 1/3 | (equation 2)

    Subtract 4 * (equation 2) from equation 1:

    {3 x+0 y = (-73) / 3 | (equation 1)

    0 x+y = 1/3 | (equation 2)

    Divide equation 1 by 3:

    {x+0 y = (-73) / 9 | (equation 1)

    0 x+y = 1/3 | (equation 2)

    Collect results:

    Answer: {x = - 73/9, y = 1/3
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