SOLUTION: Sewer #1 contains 9 less rats, than sewer #2. Sewer #2 contains 5 fewer rats the sewer #3. If there are 56 gigantic rats in total, how many rats are in sewer #1?

Question 279281: Sewer #1 contains 9 less rats, than sewer #2. Sewer #2 contains 5 fewer rats the sewer #3. If there are 56 gigantic rats in total, how many rats are in sewer #1?
Found 2 solutions by JBarnum, Stitch:
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
Sewer #1=a
Sewer #2=b
sewer #3=c

use substitution and salve for c

=22.66

=17.66

=15.66 id say 15 rats as there arent partial rats in a sewer
Answer by Stitch(470) (Show Source): You can put this solution on YOUR website!
I think that his first equation was wrong
it should have been:
So then you would have:

Use substitution and solve for C

There are 11 rats in sewer #1

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