Question 619329
Amil is 15 yrs. older brother than Ivan. However y years ago Amil was twice asold as Ivan. If Ivan is now x years old and x is greater than y. What is the value of x-y?
-------
Equations: 
x = y + 15
----
(x-y) = 2(y-y)
=======================
The 1st equation says x-y = 15
The 2nd equation says x-y = 0
-------
Contradiction:::::
Please check the statement of your problem.
Cheers,
Stan H.