已知xy的值满足x+1/2=y+3/4=x+y/5,求代数式3x+2y+1/x+2y+3的值

已知xy的值满足x+1/2=y+3/4=x+y/5,求代数式3x+2y+1/x+2y+3的值
已知xy的值满足x+1/2=y+3/4=x+y/5,求代数式3x+2y+1/x+2y+3的值

已知xy的值满足x+1/2=y+3/4=x+y/5,求代数式3x+2y+1/x+2y+3的值
先将x+1/2=y+3/4=x+y/5列为2个方程组.①x+1/2=y+3/4②y+3/4=x+y/5
然后求出X,y.
最后代入3x+2y+1/x+2y+3.