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6 September, 09:08

5x+3y=28

2x+y=11

Solve algebraically

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Answers (1)
  1. 6 September, 09:13
    0
    Answer: x=5, y=1

    Step-by-step explanation:

    Note: (1) means equation 1 and so on

    5x+3y=28 (1)

    2x+y=11 (2)

    (1) - (2) = 3x+2y=17 (3)

    (3) - (2) = x+y=6 (4)

    (2) - (4) = x=5 (5)

    Insert (5) into (2)

    2 (5) + y=11

    10+y=11

    y=1
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