(1-60%)x =(x+1000) 乘(1-62%)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/20 12:03:00
(1-60%)x=(x+1000)乘(1-62%)(1-60%)x=(x+1000)乘(1-62%)(1-60%)x=(x+1000)乘(1-62%)40%X=(X+1000)*38%0.4X=(X+

(1-60%)x =(x+1000) 乘(1-62%)
(1-60%)x =(x+1000) 乘(1-62%)

(1-60%)x =(x+1000) 乘(1-62%)
40%X=(X+1000)*38%
0.4X=(X+1000)*0.38
0.4X=0.38X+380
0.02X=380
X=19000
*号是乘号啦~~呵呵~~

x-0.6x=x+1000-0.62x-620
0.02x=380
x=19000

简化:0.4x=0.38x+380
移项:0.02x=380
解得:x=19000

(1-60%)x =(x+1000)×(1-62%)
40%x =38%(x+1000)
40%x =38%x+380
40%x -38%x=380
2%x=380
x=19000