Mr. X has invested 35,000, that he had divided into three investments. Part of the money is invested in a savings account with an annual return of 6%, partly in 7% annual yield bonds and the remainder in business. In 2015, when he lost 6% of the money that he invested in the business, his net income from all the three investments is 660. If he invested 3.000 more in the business than in the savings account, how much was invested in each. Use matrix algebra.