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14 September, 14:20

Solve with using elimination

3 х + 5y = 54

6 х + 4y = 72

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Answers (1)
  1. 14 September, 14:45
    0
    y = 6 x=8

    Step-by-step explanation:

    (3 х + 5y = 54) - 2 times by - 2

    6 х + 4y = 72

    -6 х + - 10y = - 108 now combine the equations

    6 х + 4y = 72

    -6y = - 36 now divide

    y = 6

    Plug 6 in 6 х + 4 * 6 = 72

    x=8
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