Formulate but do not solve the problem.

Michael Perez deposited a total of $2000 with two savings institutions. One pays interest at a rate of5%/year, whereas the other pays interest at a rate of7%/year. If Michael earned a total of$112in interest during a single year, how much did he deposit in each institution?

(Letxandydenote the amount of money, in dollars, invested at5%and7%, respectively.)

____=112

____= 2000