Question

Gina's age is 2 times more than 3 times Andrews age if the sum of their ages is 54 years, how old is Gina?

Answer 1

g = 2 * 3 * a
g + a = 54

Answer 2

g + a = 54
g = 2(3a) = 6a
now sub 6a in for g in the first equation. This will give you a (Andrew's age). Then sub that into either of the equations to find g (Gina's age)