Answer:
x-y=17-17=0
Step-by-step explanation:
The steps I have to follow are:
So that some operation between x and y is equal to zero, what I have to do is subtract x and y. Then I performed the operation I can get the zero I need in the answer.
Then x-y = 17-17 = 0
Any other operation, although it can be performed, the value we need is not obtained