Algebra
posted by Sue .
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)

Algebra 
Scott
try this
(.08 * x) + [.07 * (x  1400)] = 217
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