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21 March, 18:21

Steps to solve the equation 4n - 2n + 4 = - 1 + 17

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Answers (2)
  1. 21 March, 19:27
    0
    4n - 2n + 4 = - 1 + 17

    2n + 4 = 16

    -4 - 4

    2n = 12

    2 2

    n = 6
  2. 21 March, 20:22
    0
    4n-2n+4=-1+17

    2n+4=-1+17

    -1+17=16

    2n+4=16

    Move + 4 to the other side. Sign changes from + 4 to - 4

    2n+4-4=16-4

    2n=12

    Divide by 2 for 2n and 12

    2n/2=12/2

    n=6

    Check answer by using substitution method

    4 (6) - 2 (6) + 4=16

    24-12+4=16

    12+4=16

    16=16

    Answer : n=6
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