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12 February, 02:13

3w-2u=12 and w-u=60 solve

+5
Answers (2)
  1. 12 February, 02:20
    0
    3 (60) - 2 (60) = 12

    180-120=12

    60=15

    60/15

    =5
  2. 12 February, 02:24
    0
    W - u = 60 ... w = 60 + u

    3w - 2u = 12

    3 (60 + u) - 2u = 12

    180 + 3u - 2u = 12

    3u - 2u = 12 - 180

    u = - 168

    w = 60 + u

    w = 60 - 168

    w = - 108

    solution is (-168,-108)
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