SOLUTION: AOB is a straight line. OD bisect angle AOC. If angle AOC is 12 less than three times angle BOC, find angle COD.

Question 1090477: AOB is a straight line. OD bisect angle AOC. If angle AOC is 12 less than three times angle BOC, find angle COD.
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
If it is something like this (or its mirror image,
with A on the left end)

The phrase "12 less than..." tells me that it is ,
and that angles are supposed to be measured in degrees
Let it be .
Then, , and

translates into and

Simplifying and solving:

Then

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