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2 July, 18:02

Solve the equations - 9x + 2y = 23 and - 4x - y = - 3

+1
Answers (2)
  1. 2 July, 19:15
    0
    y=7

    x = - 1
  2. 2 July, 20:57
    0
    (-1,7)

    Step-by-step explanation:

    -9x + 2y = 23

    -4x - y = - 3

    multiplying equation 2 by 2

    -9x + 2y = 23

    -8x - 2y = - 6

    adding the two equation to cancel out y

    -17x = 17

    x = - 1

    plugging back x = - 1 into the second equation

    4 - y = - 3

    -y = - 7

    y = 7
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