```Question 625248
Let x = number of years that pass from now

So in x = 1 year, you will be 40+x = 40+1 = 41 years old and she will be 9+x = 9+1 = 10 years old

So in general, after x years pass, you will be 40+x years old and she will be 9+x years old.

You want to know how long it will take for you to be 3 times as old as her in x years.

So this means that

(Your age in x years) = 3*(Her age in x years)

40+x = 3*(9+x)

So the equation is 40+x = 3*(9+x)

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Now let's solve 40+x = 3*(9+x)

40+x = 3*(9+x)

40+x = 27+3x

x = 27+3x-40

x-3x = 27-40

-2x = -13

x = -13/(-2)

x = 13/2

x = 6.5

Since this result is not a whole number, this means that you'll never be 3 times as old as her.

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