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26 December, 06:07

Solve by substitution. Check

X+y=8

Y=x-2

+5
Answers (1)
  1. 26 December, 06:26
    0
    X + y = 8

    Replace y as y = y Insert x back into the original

    x + x - 2 = 8 5 + y = 8

    2x - 2 = 8 - 5 - 5

    + 2 + 2 y = 3

    2x = 10 (5, 3)

    - - - - - -

    2 2

    x = 5
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