Question 236200
.08(x+6,000)+.07x=1,080
.08x+480+.07x=1,080
.15x=1,080-480
.15x=600
x=600/.15
x=4,000 amount invested @ 7%.
4,000+6,000=10,000 invested @ 8%.
Proof:
.08*10,000+.07*4,000=1,080
800+280=1,080
1,080=1,080