SOLUTION: My little sister is six. I will be twice her age in three years time. How old am I now

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Question 618309: My little sister is six. I will be twice her age in three years time. How old am I now
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Your sister is 6 now. Let your age be given by x.
In three years your sister will be 6+3=9. In three years you will be x+3
You are told
2%2A%286+%2B+3%29+=+x+%2B+3
18+=+x+%2B+3
15+=+x
You are 15 now