SOLUTION: 12. When 8 is subtracted from 3 ¾ of a number, the result is 3 times the original number. Find the number.

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Question 389574: 12. When 8 is subtracted from 3 ¾ of a number, the result is 3 times the original number. Find the number.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

I. Assigning the variable       

Let x represent the number 

II.Writing as we Read***

  15/4 *x - 8 = 3x

III.Solving for x  by multiplying both sides of equation by 4 in this case

     15x - 32 = 12x

           3x = 32

            x = 32/3 the number in question



IV. CHECKING Our Answer***

   15/4 * 32/3 - 8 = 40 - 8 = 32