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19 December, 17:50

How to solve 4n-40=7 (-2n+2)

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  1. 19 December, 19:22
    0
    4n-40=7 (-2n+2)

    4n-40=-14n+14

    subtract - 4n from both sides

    -40 = - 18n + 14

    subtract - 14 from both sides

    -54=-18n

    divide both sides by - 18

    3 = n
  2. 19 December, 21:14
    0
    4n-40=-14n+14 4n+14n=14+40 18n=54 N=3
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