SOLUTION: Please solve this me: Ken is three times as old as 10 years ago.How old is he now?

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Question 1021465: Please solve this me: Ken is three times as old as 10 years ago.How old is he now?
Found 2 solutions by Fombitz, LinnW:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Today Ken is K.
Ten years ago, Ken was K-10.
K=3%28K-10%29
K=3K-30%29
Finish to get the solution.

Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
Set K = Ken's current age
K = 3(K-10)
K = 3K -30
add -3K to each side
-2K = -30
divide each side by -2
K = 15