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find a number such that when 3/4 of it is added to 3½the sum is the same as when 2/3 of it is subtracted from 6½. PLEASE HELP​
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find a number such that when 3/4 of it is added to 3½the sum is the same as when 2/3 of it is subtracted from 6½. PLEASE HELP​

User Grynn
by
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1 Answer

4 votes

Answer:

- 120

Explanation:

call x is the number you want to find

  1. (3/4 )x + 3
    (1)/(2) = (2/3)x - 6
    (1)/(2)
  2. (3/4)x + (7/2) = (2/3)x - (13/2)
  3. (3/4)x - (2/3)x = - (13 /2) - (7/2)
  4. (1/12)x = -10
  5. x = -10 / (1/12) = -120
User Martin Vobr
by
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