You can
put this solution on YOUR website!
7.25%x+9.5($14,000-x)=$1240
.0725x+.095(14,000-x)=1240
.0725x+1330-.095x=1240
.0725x-.095x=-1330+1240
-.0225x=-90
x=$4,000 invested at 7.25%
($14,000-4,000)=$10,000 invested at 9.5%
.
Check by plugging all of the values back into the original equation and solve.