Question 571100
8%---------------x

9%= x+2000

sum of idividual interests = total interest

0.08x+0.09*(x+2000)=860

0.08x+0.09x+180=860

0.17x=860-180

0.17x=680

/0.17
x= 680/0.17
x= 4000

Amount invested @8% = $4000
Amount invested @ 9% = $4000+2000 = $6000

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