已知a,b,c满足2/a=3/b-c=5/c+a,求(5a-b)/(b+2c)的值

问题描述:

已知a,b,c满足2/a=3/b-c=5/c+a,求(5a-b)/(b+2c)的值

a=2 b=6 c=3,(5a-b)/(b+2c)=1/3