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13 September, 08:19

Solve the system of equations algebraically.

4x + 5y = 15

- 4x + y = 7

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  1. 13 September, 10:36
    0
    4x + 5y = 15

    -4x + y = 7

    6y = 22

    y = 22/6 = 11/3

    -4x + 11/3 = 21/3

    -4x = 10/3

    x = - 40/3
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