Question 1153782
Sally invested some money at 12% interest. Assume it is x

Sally also invested $212more than 2 times that amount at14%. 
that implies that she invested 2x +212 at 14%

Interest received = $945.68

12%x + 14%(2x+212)= 945.68

multiply the equation by 100
12x+14(2x+212) = 94568

12x+28x+2968 = 94568
40x = 94568-2968
40x=91600
x= 2290
you can continue