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24 September, 10:58

Solve the system of equations - 5y + 4x = 49

7y + 2x = - 23

x?

y?

+4
Answers (1)
  1. 24 September, 14:12
    0
    x=12,

    y = - 19/95

    Step-by-step explanation:

    A : - 5y+4x=49;

    B: 7y+2x = - 23

    2B: 14y+4x=-46

    2B-A: 19y=-95

    y = - 19/95

    so A is : - 5 (-19) / 95+4x=49

    1 + 4x=49

    4x=48

    x=12
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