SOLUTION: uzma is 15 years old. asma is one-third older then uzma. how many years ago when asma was twice as old as uzma is?

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Question 624666: uzma is 15 years old. asma is one-third older then uzma. how many years ago when asma was twice as old as uzma is?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Uzma is +15+
Asma is +15+%2B+15%2F3+=+20+
Let +x+ = the number of years ago when asma was twice as old as uzma
+20+-+x+=+2%2A%28+15+-+x+%29+
+20+-+x+=+30+-+2x+
+x+=+30+-+20+
+x+=+10+
10 years ago, asma was twice as old as uzma
check answer:
10 years ago, Asma was +20+-+10+=+10+
10 years ago, Uzma was +15+-+10+=+5+
OK