SOLUTION: Hi, Can I please get some help im solving for the ROI, it's just basic algebra i don't really get: .2606 = ROI + (ROI-0.0405)(1/3) I know the answer is ROI = 20%, just don'

Question 669339: Hi, Can I please get some help im solving for the ROI, it's just basic algebra i don't really get:
.2606 = ROI + (ROI-0.0405)(1/3)

I know the answer is ROI = 20%, just don't understand the steps.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
Hi, Can I please get some help im solving for the ROI, it's just basic algebra i don't really get:
.2606 = ROI + (ROI-0.0405)(1/3)

I know the answer is ROI = 20%, just don't understand the steps.

.7818 = 3ROI + ROI � 0.0405 ------- Multiplying by LCD, 3

.7818 + 0.0405 = 3ROI + ROI

.8223 = 4ROI

ROI = , or ≈ 20.56%, or 20.6%, or 21%, depending on where you need to round it off.

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