First year : 25750 x 80% = 20600 Second year : 20600 x 80% = 16480 Third year : 16480 x 80% = 13184 Fourth year : 13184 x 80% = 10547.2 Fifth year : 10547.2 x 80% = 8437.76
Combine like terms (Xs and munbers) (in this case, it's easier to add 15 to both sides and subtract 2x from both sides so both sides end up being positive) 33 = x
