Emma was 3 in 2000 and the father was 34
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Let's define F as the father's age and E as Emma's age in January 2000.
According to the question, the father's age in January 2000 was one more than 11 times Emma's age, which gives us the first equation:
In January 2009, the father was seven more than three times as old as Emma. By this time, both would have aged by 9 years, so the second equation is:
Substitute F from the first equation into the second equation.
Simplify and solve for E:
Substitute E into the first equation to find F:
Therefore, Emma was 3 years old in January 2000, and thus she was born in 1997, and the father was 34 years old in January 2000.