math

If it says: "five less than three times a number is 20 More than half a number" would the equation be 3n-5=n/2+20? If so what would the answer be?
Please help this is a bit confusing!

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asked by jeffery
  1. Yes, it's the right equation.

    3n-5=n/2+20

    3n - n/2 = 25

    6n - n = 50

    5n = 50

    n = 10

  2. Okay, but I believe you have lost the equal sign when you switched from 3n-5=n/2+20 to 3n-n/2=25.

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    posted by jeffery
  3. No, she did not lose anything
    she subtracted n/2 both sides of the equal sign and
    she added five on both sides of the equal sign.

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    posted by Damon
  4. Oh, I did the oppistie of that. I multiplied the 2 from n/2 on both sides of the equal sign and I got, n, as 5. However, how could you subtract from a division to a multiplication?

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    posted by jeffery
  5. ok, I will do it your way

    2(3n-5) = 2(n/2+20)

    6 n -10 = n + 40

    5 n = 50

    n = 10

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    posted by Damon

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