Solve the equation; include extraneous solutions(if avalible)

Question

1. 1/5=4/5+4/5r

Answer 1

1/5 = 4/5 + 4/5r

multiply both sides by 5

1 = 4 +4/r

4/r = -3

r = -4/3

UNLESS you meant to write

1/5 = 4/5 + (4/5)r

then multiply by 5

1 = 4+4r

4r =1-4= -3

r =-3/4

the way it's written though, the answer is r=-4/3

but you may have intended to write it the other way, so r=-3/4 is maybe the "correct" answer

Answer 2

(1/5) = (4/5) + (4/5) r

-3/5 = (4/5) r

(-3/5)(5/4) = 5

Can you finish and answer?