Question 486990
Your starting seems correctly
You let x be the amount which invest into 16% account
        y---------------------------------15% account
The total amount to invest is 23000
x + y = 23000
The total earned amount is 3500
0.16x + 0.15y = 3500
Solve the system to find the amount of each investment
x + y = 23000
0.16x +0.15y = 3500
Hint: the answers are $5,000 in 16% account and $18,000 in 15 % account
Hope it'll help you! John10:)