algebra
posted by Hailey .
Last year, Susan had 30,000 to invest. She invested some of it in an account that paid 8% simple interest per year, and she invested the rest in an account that paid 7% simple interest per year. After one year, she received a total of $2150 in interest. How much did she invest in each account?

.08 x + .07(30000x) = 2150
.08 x + 2100 .07 x = 2150
.01 x = 50
x = 5,000
30,000  x = 25,000
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