5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/28 00:08:55
5x—4.9x=0.313.4÷x=4.8÷248—3(x+0.2)=0.85x—4.9x=0.313.4÷x=4.8÷248—3(x+0.2)=0.85x—4.9x=0.313.4÷x=4.8÷24

5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8
5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8

5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8
5x-4.9x=0.31
0.1x=0.31
x=0.31÷0.1
x=31
3.4÷x=4.8÷24
3.4=0.2x
x=3.4÷0.2
x=17
8-3(x+0.2)=0.8
8-3x-0.6=0.8
-3x=-6.6
x=-6.6÷(-3)
x=2.2
不懂可追问!