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26 December, 17:01

Tell whether (-5, - 6) is a solution of

x - 2y = 7

y - x = - 1

+5
Answers (1)
  1. 26 December, 19:43
    0
    (-5, - 6) is a solution.

    Step-by-step explanation:

    x - 2y = 7

    -5 - 2 (-6) = 7

    -5 - (-12) = 7

    -5 + 12 = 7

    7 = 7

    y - x = - 1

    -6 - (-5) = - 1

    -6 + 5 = - 1

    -1 = - 1
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