Question 306555
.07x+.10(2x+2,000)=3,980
.07x+.20x+200=3,980
.27x=3,980-200
.27x=3,780
x=3,780/.27
x=$14,000 amount invested @ 7%
2*14,000+2,000=28,000+2,000=$30,000 invested @ 10%
Proof:
.07*14,000+.10*30,000=3,980
980+3,000=3,980
3,980=3,980