Nico is saving money for his college education. He invests some money at 8% and $1400 less then the amount at 7%. The investments produced a total of $217 interst in one yeat. How much did he knvest at each rate?

So far I have
0.08 (1400)(0.07)

1 answer

try this

(.08 * x) + [.07 * (x - 1400)] = 217