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3 votes
Write using algebra.

If Jim is x years old now, and his sister is twice as old, how old was his sister 7 years ago?

User Lee Berger
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2 Answers

2 votes
I think his sister would be 7, 7 years ago but I'm not sure
User Francky
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4 votes
The answer is 2x-7

And this needs to be 20 characters (so don't mind this)
User Cahit
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