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15 December, 09:41

How do you isolate x in 1/2x+1/5y=9

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Answers (2)
  1. 15 December, 11:03
    0
    You would subtract 1/5y, and multiply both sides by 2 (1/2's reciprocal)
  2. 15 December, 12:38
    0
    Subtract 1/2x from each side

    1/5y=9-1/2x

    subtract 9 from each side

    1/5y-9=-1/2x

    multiply each side by 2

    2/5y-18=-x

    multiply each side by - 1

    -2/5y+18=x
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