SOLUTION: This problem is giving me trouble. I can simplify but can't figure out how to flip the bottom to cancel out.
7k - 21 7(k - 3)
-------- ----------
9 - 3k
Algebra.Com
Question 429469: This problem is giving me trouble. I can simplify but can't figure out how to flip the bottom to cancel out.
7k - 21 7(k - 3)
-------- ----------
9 - 3k 3(3 - k)
Answer by sudhanshu_kmr(1152) (Show Source): You can put this solution on YOUR website!
7k - 21
--------
9 - 3k
7(k - 3)
--------
3(3 - k )
-7(3 - k)
--------
3(3 - k )
now, cancel (3-k)
answer: -7/3
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