percentage math word problems

Question

julio invests $6000 in two different accounts. The first account paid 8 %, the second account paid 10 % in interest. At the end of the first year he had earned $522 in interest. How much was in each account?

Answer 1

x * 0.08 + (6000 - x) * 0.10 = 522

Answers would be x and (6000 - x)