5x-a=14 2(5x+a)=3(a-x)+12a 8:3=4x:7 2x:3=6:

来源:学生作业帮助网 编辑:作业帮 时间:2024/09/14 05:59:44
x=N02Qd&89pA3% *Q`+d\X3OO}c&VTLf5[!Y)[Q$75?aXXxd3,DCue (hrEPdb5PAmIl,nr<mIЊ6nh xݧMXc?qzy?_q>7)lqv%yN\CriaBFtQ&y;q%@3-