Mathematics

Question

can someone explain what's n+1-3n=-5+n+1-2

2 Answer

  • n+1-3n=5+n+1-2

    Simplify it

    -2n+1 = n+4

    Add 2n to both sides

    1 = 3n+4

    Subtract 4 from both sides

    -3 = 3n

    Divide by 3

    n = -1
  • n + 1 - 3n = -5 + n + 1 - 2

    Combine like terms:

    n - 3n = -2n

    -2n + 1 = -5 + n + 1 - 2

    Combine like terms:

    -5 + 1 - 2 = -6

    -2n + 1 = n - 6

    Subtract 'n' to both sides:

    -3n + 1 = -6

    Subtract 1 to both sides:

    -3n = -7

    Divide -3 to both sides:

    n = 2 1/3 or 7/3
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