SOLUTION: Katerina Lubov inherited some money and invested it at 6% simple interest. At the end of the year, the total amount of her original principal and the interest was $12,720. How much

Question 351736: Katerina Lubov inherited some money and invested it at 6% simple interest. At the end of the year, the total amount of her original principal and the interest was $12,720. How much did she originally invest?
Please let me know the process about this question.
Thanks

5
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
Sorry I misread the problem.
.06x+x=12,720
1.06x=12,720
x=12,720
x=12,720/1.06
x=$12,000 was the original investment.
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