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20 May, 01:29

4x + 5y = 23

9x - 5y = 3

+3
Answers (1)
  1. 20 May, 01:46
    0
    one solution : (2; 3)

    Step-by-step explanation:

    hello:

    4x + 5y = 23 ... (*)

    9x - 5y = 3 ... (**)

    add (*) and (**) : 13x = 26

    x = 26/13 = 2

    put this value in (*) : 4 (2) + 5y = 23

    5y = 15

    y = 15/5=3

    one solution : (2; 3)
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