Steve has $24,000 invested in two accounts. One earns 6% annual interest and the other earns 7%. After 1 year, his combined interest is $1635. How much was invested in each account?

Answer 1

.06 x + .07 (24,000 -x) = 1635
-.01 x + 1680 =1635
-.01 x = - 45
x = 4500
24000 - x = 19,500