Question

} " alt="v = \frac{er}{r + a} " align="absmiddle" class="latex-formula">
solve for r
will give the brainliest​

Answer 1

Answer:

The answer is

$r = - \frac{va}{v - e}$

Step-by-step explanation:

You have to get rid of fraction first :

$v = \frac{er}{r + a}$

$v(r + a) = er$

$vr + va = er$

Next, you have to move all the r-variables to one side :

$vr + va = er$

$vr - er = - va$

Lastly, make r the subject :

$vr - er = - va$

$r(v - e) = - va$

$r = - \frac{ va}{v - e}$

Answer 2

Answer:

r = va/(e - v)

Step-by-step explanation:

v = er/(r + a)

vr + va = er

va = er - vr

va = r(e - v)

r = va/(e - v)