(80-X)*1.5=(90-X)*2/3 怎么解

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/22 19:19:56
(80-X)*1.5=(90-X)*2/3怎么解(80-X)*1.5=(90-X)*2/3怎么解(80-X)*1.5=(90-X)*2/3怎么解(80-X)*1.5=(90-X)*2/380*1.5-

(80-X)*1.5=(90-X)*2/3 怎么解
(80-X)*1.5=(90-X)*2/3 怎么解

(80-X)*1.5=(90-X)*2/3 怎么解
(80-X)*1.5=(90-X)*2/3
80*1.5-1.5X=90*2/3-2/3*X
移项
1.5X-2/3X=80*1.5-90*2/3
5/6*X=60
X=60÷5/6
X=72

(80-X)*1.5=(90-X)*2/3
9(80-x)=4(90-x)
720-9x=360-4x
5x=360
x=72
愿对你有所帮助!