两道数学联赛试题的推广

例1若x,y满足x/(3~3+4~3)+y/(3~3+6~3)=1,x/(5~3+4~3)+y/(5~3+6~3)=1,则x+y=____.x/(5~3+4~3)+y/(5~3+6~3)=1,则x+y=____.