Question 1205855
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The sum of their ages 2 years from now will be 12x+4, so the sum of their ages now is (12x+4)-4 = 12x.<br>
Then since Gigi is currently 3 times as old as Georgina, Gigi's age now is 9x and Georgina's age now is 3x.<br>
So the difference between their ages is 6x; and that means when Gigi is 15 Georgina's age will be 15-6x.<br>
ANSWER: 15-6x<br>