Respuesta :

Start by isolating y 

(3x+1)/4=(5-2y)/6 
(3x+1)6/4 =5-2y 
(3x+1)3/2=5-2y 
(9x+3)/2=5-2y 
(9x+3)/2-5=-2y 
(9x+3-10)/2=-2y
(9x-7)/-4=y 

Hope I helped :)