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27 December, 10:38

Solve the system of equations and choose the correct ordered pair.

2x - 6y = 8

5x - 4y = 31

+1
Answers (1)
  1. 27 December, 10:56
    0
    The solution is (7, 1).

    Step-by-step explanation:

    2x - 6y = 8 Multiply this by - 5.

    5x - 4y = 31 Multiply this by 2.

    -10x + 30y = - 40 ... (1)

    10x - 8y = 62 ... (2)

    Adding (1) and (2):

    22y = 22

    y = 1.

    Substitute for y in the first equation:

    2x - 6 (1) = 8

    2x = 14

    x = 7.
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