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6 February, 20:52

2x + 5y = 25

y = 3x + 22

+2
Answers (1)
  1. 7 February, 00:14
    0
    x = - 5

    Step-by-step explanation:

    2x + 5y = 25

    Replace y by the equation given

    2x + 5 (3x + 22) = 25

    Solve.

    2x + 15x + 110 = 25

    17x + 110 = 25

    17x + 110 - 110 = 25 - 110

    17x = - 85

    17x / 17x = - 85 / 17

    = - 5

    x = - 5
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