解方程 x-25-(x-25)*0.4=0.5x

分类: 作业答案 • 2022-02-14 17:55:01

问题描述：

答

o(∩_∩)o...
X-25-(X-25)*0.4=0.5X
化简：X-25-0.4X+10-0.5X=0
0.9X-15=0
0.9X=15
X= 50/3
解得X=50/3.

答

x=150
X-25-(X-25)*0.4=0.5X
X-25-0.4X+10=0.5X
X-0.9X=15
0.1X=15
X=150

答

展开得:X-25-0.4X+25*0.4=0.5X
化简得:0.1X=33
解得:X=330

答

X-25-(X-25)*0.4=0.5X
化简：X-25-0.4X+10-0.5X=0
0.9X-15=0
0.9X=15
X= 50/3
解得X=50/3.