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11 February, 21:15

2x + 3y = 1

5x - 2y = 12

+2
Answers (2)
  1. 11 February, 21:25
    0
    x=2 y = - 1
  2. 11 February, 21:25
    0
    (2; - 1)

    Step-by-step explanation:

    2x + 3y = 1 ... (1)

    5x - 2y = 12 ... (2)

    mutiply (1) by : 2 and (2) by : 3

    4x+6y = 2 ... (*)

    15x-6y = 36 ... (**)

    now add (*) and (**) : 19x=38 so : x = 38/19 = 2

    put this value in (1) : 2 (2) + 3y = 1

    3y = 1 - 4

    3y = - 3

    so : y = - 3/3 = - 1
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