Let be Jamie's current age. in five years time, he will be . last year, he was years old.

thus we have

now solve for

when it's all said and done, you gained $900. this gain is the net increase from a 6% increase in the money you invested in the low risk account + a 3% decrease in the money you invested in the high risk account.

Let be what you invested in the low risk account out of the $24000

Then is the amount you invested in the high risk account.

you gained 6% from the low risk, which is

you lost 3% from the high risk, which amounts to

all in all, you gained $900. thus,

now solve for