First you need to figure out what 5.4% of 3600 is. So take 3,600 x 0.054. This equals 194.4. You then want to add this to 3,600. This will equal 3,794.4. You then want to do the process again, so the interest this year comes from 3,794.4 x 0.054. This equals about 204.9 (if you can it is 204.8976). Then you want to add that back into 3,794.4 so it will equal about 4,000 (or 3,999.2976) Well now this is a long process, but its the one way I remember how to do it.
-3=7x-10. -7x=3-10. X=1. You can check the answer by plugging in the numbers.
I don’t even know :( sorry
