Hello there! :)
Answer:

*THE ANSWER SHOULD HAVE A POSITIVE SIGN ONLY!*******
Explanation:
First, you switch sides of an equation.

Then, you subtract by 3611 from both sides of an equation.

Subtract by the numbers from left/right.

, is the FINAL CORRECT ANSWER!
Hope this helps!
Thanks!
Have a nice day! :)
-Charlie