Question 221284

(4+y)/5=y/z
Multiply both sides by 5z
((4+y)/5)(5z)=(y/z)(5z)
(4+y)z = 5y
4z+yz = 5y
4z = 5y-yz
4z = y(5-z)
(4z)/(5-z) = y
{{{(4z)/(5-z) = y }}}