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31 July, 15:24

What is the solution of this linear system?

3x + 5y = - 1

2x - 5y = 16

(-3, 2)

(-3, - 2)

(3, - 2)

(2, - 3)

+2
Answers (1)
  1. 31 July, 19:16
    0
    3x + 5y = - 1

    2x - 5y = 16

    5x = 15

    5 5

    x = 3

    3x + 5y = - 1

    3 (3) + 5y = - 1

    9 + 5y = - 1

    - 9 - 9

    5y = - 10

    5 5

    y = - 2

    (x, y) = (3, - 2)

    The answer is C.
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