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11 November, 10:58

What's the answer to 4 - 3y = 31

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Answers (2)
  1. 11 November, 11:32
    0
    4 - 3y = 31

    4 = 31 + 3y | Add 3y to both sides

    4 - 31 = 3y | Take away 31 from both sides

    3y = 4 - 31 | Swap LHS and RHS

    3y = - 27 | Divide by 3 on both sides

    y = - 9
  2. 11 November, 12:11
    0
    4 - 3 y = 31

    -3y = 31 - 4

    -3y = 27

    27 : (-3) = - 9

    -9
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