1/5-(X-3/8)=0.751 3— -(X- —)=0.755 8

问题描述:

1/5-(X-3/8)=0.75
1 3
— -(X- —)=0.75
5 8

1/5-(x-3/8)=0.75解 1/5-x+3/8=0.75 23/40-x=0.75 -x=3/4-23/40 -x=7/40 x=-7/40 希望能帮助你,...