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Could I get a walk through solving the problem:

100 = Y - (Y x 0.0875)

I started by subtracting Y on both sides:

100 - Y = (Y x 0.0875)

And the dividing 0.0875 on both sides:

(100-Y) / 0.0875 = Y

But now I am at a loss, this actually seems like an impossible to solve math problem to me at the moment, probably because I should go to be already lol, because Y will always be on both sides...

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2 Answers 2

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Hint :

$$100=(1-0.0875)\cdot Y$$

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  • $\begingroup$ vHow did you get the 1 in there "legally", I kind of get it Y minus a portion of Y in Y - (Y x 0.0875) $\endgroup$ Commented Jan 16, 2015 at 7:48
  • $\begingroup$ @BrianOgden $Y=1 \cdot Y$ $\endgroup$
    – Pedja
    Commented Jan 16, 2015 at 9:58
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$$\begin{align}100 &= Y - (Y \times 0.0875)\\100 &= Y(1) - (Y \times 0.0875)\\100&= Y (1 - 0.0875)\\100&= Y (.9125)\\\frac{100}{.9125}&=Y\end{align}$$

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