Question 187753
.05(X+1200)=.07X
.05X+60=.07X
.05X-.07X=-60
-.02X=-60
X=-60/-.02
X=$3,000 ANS. FOR THE AMOUNT INVESTED @7%
3000+1200=4200 ANS. FOR THE AMOUNT INVESTED @ 5%.
PROOF:
.05*4200=.07*3000
210=210