How would I solve this?

3. [5 pts] Juan has $20,000 to invest. He invests some of it in an account that paid 6% annual interest, and he invested the rest in an account that paid 5% annual interest. After one year, he received a total of $1,080 in interest. How much did he invest in each account? (Clearly label which amount is for which account in your answer. Hint: Over a one year period, annual interest is the same as simple interest.)