2(x+100)=(1-25%)y

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/12 16:48:24
2(x+100)=(1-25%)y

2(x+100)=(1-25%)y
2(x+100)=(1-25%)y

2(x+100)=(1-25%)y
2(x+100)=3y/4 => y=8(x+100)/3
=> x=t ;y=8(t+100)/3 ;t任意实数