Solve r/n + t = 4v for r

Since r is being divided by N, we need to multiply both sides by N.

We are left with R + T = 4v/n

Now, we subtract T from each side. The equation is now R = 4V/N - T

We have now solved for R.

r/n+t=4v

r/n+t-t=4v-t

r/n=4v-t

(n) r/n+4v-t (n)

r=4vn-tn

r=n (4v-t)