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The result obtained when x is multiplied by y is equal to ten times the result obtained when y is subtracted?

The result obtained when x is multiplied by y is equal to ten times the result obtained when y is subtracted from x. If y equals 5, what does x equal?

xy = 10(x-y)

5x = 10(x-5)

5x = 10x - 50

5x = 50

x = 10

4 Responses to “The result obtained when x is multiplied by y is equal to ten times the result obtained when y is subtracted?”

1. moo? says:

   November 5, 2009 at 12:50 pm

   xy = 10(x-y)

   5x = 10(x-5)

   5x = 10x - 50

   5x = 50

   x = 10
   References :
2. Claret_n_Blue says:

   November 5, 2009 at 1:12 pm

   xy = 10(x-y)
   5x = 10x - 50
   5x = 50
   x = 10
   References :
3. JD says:

   November 5, 2009 at 1:21 pm

   xy = 10 (x-y)

   (sub y=5)

   5x = 10 (x-5)
   5x = 10x - 50
   5x = 50
   x = 10
   References :
4. I Just Lost the Game says:

   November 5, 2009 at 1:37 pm

   Solve for x:
   —-xy=10(x-y)
   —-xy=10x- 10y
   —-xy-10x=-10y
   —-x(y-10) = -10y
   —-x= -10y/(y-10)

   Plug in 5 for y.
   —-x=-10(5) / (5-10)
   —-x=(-50) / (-5)
   —-x= 10.
   References :

November 5th, 2009

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