问题
(1)他第①步错误是:
(2)第②步相对于第①步的错误是
(3)0.2分之0.2x-0.3-0.6分之0.1x-1=1
(2x-3)/2-(x-10)/6=10
3(2x-3)-(x-10)=60
6x-9-x+10=60
5x=59
x=59/5
问题
(1)他第①步错误是:
(2)第②步相对于第①步的错误是
(3)0.2分之0.2x-0.3-0.6分之0.1x-1=1
(2x-3)/2-(x-10)/6=10
3(2x-3)-(x-10)=60
6x-9-x+10=60
5x=59
x=59/5