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8 May, 02:26

53 - 9y = 1

-7.2 + 2y = - 5

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Answers (1)
  1. 8 May, 02:36
    0
    1.1, - 5

    Step-by-step explanation:

    53 - 9y = 1

    from equation i

    53-9y = 1

    -9y = 1-53 = - 52

    y = - 52/-9 = 52/9 = 5⁷/₉

    -7.2 + 2y = - 5

    add 7.2 to both sides

    2y = - 5+7.2 = 2.2

    y = 2.2/2 = 1.1
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