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8 September, 02:00

30

Solve the system of equations.

x + 2y = - 3

x - y = - 12

+4
Answers (1)
  1. 8 September, 02:22
    0
    x = - 9 y = 3

    Step-by-step explanation:

    x + 2y = - 3

    - (x - y = - 12)

    x - x + 2y + y = - 3 + 12

    3y = 9

    y = 3

    x - y = - 12

    x - 3 = - 12

    x = - 9
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