SOLUTION: Riza is thingking of a number. she divided it by 15 thrice the difference of this number and 36 and arrives at 24. what is riza's number?

Question 769943: Riza is thingking of a number. she divided it by 15 thrice the difference of this number and 36 and arrives at 24. what is riza's number?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
A number = x
Divided by 15.
x/15
Thrice the difference of this number and 36
3*(36 - x/15)
Arrives at 24
3(36 - x/15) = 24
Multiply out
108 - x/5 = 24
- x/5 = 24 - 108
-x/5 = - 84
x/5 = 84
x = 84*5
x = 420.
This is Riza's number
Proof:
420/15 = 28
3(36 - 28) = 24.
Hope this helps.
:-)
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