Question

solve n=4r for r

Answer 1

r=n/4

Answer 2

n/4 = r

Answer 3

\[n/4 =r\]

Answer 4

I like how no one showed how to solve it ._.

You're solving for r, r is being multiplied by 4 so to undo it you divide both sides by 4

dividing 4r/4 is just r because the 4's cancel out -- 4/4 = 1, 1r = r

So then you have n/4 = r or r = n/4