ey/n + k = t for y

ey/n + k = t for y

Let's take this literal equation in pieces:

Subtract k from each side:
ey/n + k - k = t - k

Cancel the k's on the left side, we have:
ey/n = t - k

Now multiply each side by n:
ney/n = n(t - k)

Cancel the n's on the left side, we have:
ey = n(t - k)

Divide each side by e:
ey/e = n(t - k)/e

Cancel the e's on the left side, we have:
y = n(t - k)/e