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20 July, 08:51

14x+5y=31 and 2x-3y=-29

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Answers (2)
  1. 20 July, 09:40
    0
    I will assume you are trying to find x and y. x = - 1, y = 0=9

    Step-by-step explanation:

    Multiply the second equation by 7 and subtract the two.

    14x + 5y = 31

    - (14x - 21y = - 203)

    This gives 26y = 234. Divide both sides by 26. y = 9

    Then substitute y into any equation. I'll use 2x - 3y = - 29

    2x - 3 (9) = - 29

    2x - 27 = - 29

    2x = - 2

    x = - 1
  2. 20 July, 11:12
    0
    yes is proportional
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