Question

Make r the subject of the formula t=r/r-3

Answer 1

Answer:

$r = \frac{3t}{t-1}$

Step-by-step explanation:

$t = \frac{r}{r - 3}$

Cross multiply,

t(r - 3) = r

tr - 3t = r

     tr  = r + 3t

 tr - r = 3t

 r(t -1) = 3t

 $r = \frac{3t}{t-1}$

Answer 2

Answer:

r = 3t/(t - 1)

Step-by-step explanation:

t = r/(r - 3)

t(r - 3) = r

tr - 3t = r

tr = r + 3t

tr - r = 3t

r(t - 1) = 3t

r = 3t/(t - 1)