x-(3/10x+20)=260

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/24 16:35:50
x-(3/10x+20)=260
x)07462д523I*/,kd2 x@5F X@<;"

x-(3/10x+20)=260
x-(3/10x+20)=260

x-(3/10x+20)=260
x-3/10x-20=260
7/10x=260+20
x=280/[7/10]
X=400