3X+(100-X)除以3=100

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/27 03:01:42
3X+(100-X)除以3=1003X+(100-X)除以3=1003X+(100-X)除以3=1003X+(100-X)除以3=1009x+100-x=3008x=200x=25去分母得:9x+10

3X+(100-X)除以3=100
3X+(100-X)除以3=100

3X+(100-X)除以3=100
3X+(100-X)除以3=100
9x+100-x=300
8x=200
x=25

去分母得:9x+100-x=300
8x=200
x=25

方程两边同时乘以3,就会变成这样:9X+100-X=300,X=25