Alan invests $2500 in two different accounts. The first account paid 9 %, the second account paid 8 % in interest. At the end of the first year he had earned $215 in interest. How much was in each account?
$
at 9%
$
at 8 %

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?