X-0.5X-12-0.5(X-0.5X-12)-8=18怎么解

分类: 作业答案 • 2022-01-19 22:20:14

问题描述：

答

X-0.5X-12-0.5(X-0.5X-12)-8=18
0.5x-12-0.5(0.5x-12)=18
(1-0.5)(0.5x-12)=18
0.5(0.5x-12)=18
0.25x-6=18
0.25x=24
x=96