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23 October, 15:04

Solve by substitution method: x - y = 5,2x + 2y = 22

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Answers (2)
  1. 23 October, 15:31
    0
    Answer: y=3 x=8

    Step-by-step explanation:

    x = 5+y

    2 (5+y) + 2y=22

    10+2y+2y=22

    4y+10=22

    4y=12

    y=3

    x=8
  2. 23 October, 15:32
    0
    x = 8

    y = 3

    Step-by-step explanation:

    x - y = 5 = > x = 5 + y

    2x + 2y = 22

    x = 5 + y

    2 (5 + y) + 2y = 22

    x = 5 + y

    10 + 2y + 2y = 22

    x = 5 + y

    4y = 12

    x = 5 + y

    y = 3

    x = 5 + 3

    y = 3

    x = 8

    y = 3
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