SOLUTION: i need to know how to do this problem: f/2-19=-17 can you help i didn't get instruation on how to do it by my teacher?

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Question 504080: i need to know how to do this problem: f/2-19=-17 can you help i didn't get instruation on how to do it by my teacher?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Assume the problem is:
f%2F2 - 19 = -17
Add 19 to both sides
f%2F2 - 19 + 19 = -17 + 19
f%2F2 = +2
multiply both sides by 2 to get rid of the denominator, this leaves us with
f = 4
:
:
Check this in the original problem replacing f with
4%2F2 - 19 = -17
2 - 19 = -17
-17 = -17; confirms our solution