0.6X+(20-X)0.8=13.6怎么解
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 12:59:17
![0.6X+(20-X)0.8=13.6怎么解](/uploads/image/z/2540636-44-6.jpg?t=0.6X%2B%2820-X%290.8%3D13.6%E6%80%8E%E4%B9%88%E8%A7%A3)
0.6X+(20-X)0.8=13.6怎么解
0.6X+(20-X)0.8=13.6怎么解
0.6X+(20-X)0.8=13.6怎么解
0.6X+(20-X)0.8=13.6
0.6X+20*0.8-0.8X=13.6
16-0.2X=13.6
0.2X=2.4
X=12
原式等于 0.6X+16-0.8X=13.6
即 16-13.6=0.8X-0.6X
2.4=0.2X
解得 X=12
0.6X+(20-X)0.8=13.6
0.6X+16-0.8X=13.6
0.8X-0.6X=16-13.6
0.2X=2.4
X=2.4÷0.2
X=12
0.6X+(20-X)0.8=13.6
0.6X+16-0.8X=13.6
0.2X=2.4
x=12
0.6X+(20-X)0.8=13.6
0.6X+16-0.8X=13.6
-0.2X=-2.4
X=12
0.6X+(20-X)0.8=13.6
0.6X+16-0.8X=13.6
0.6X-0.8X=13.6-16
-0.2X=-2.4
X=-2.4/-0.2
X=12
0.6X+(20-X)0.8=13.6
0.6X+20*0.8-0.8X=13.6
16-0.2X=13.6
0.2X=2.4
X=12
等式两边同时乘以10,再去括号,合并即可得x=12