Đáp án:
`x=-29/35`
`x=13/7`
Giải thích các bước giải:
`0,1(6)+(0,(3))/(0,(3))+1,1(6) × x=0,(2)`
`1/6 + 1 + 7/6 xx x=1/5`
`7/6+7/6xxx=1/5`
`7/6.(1+x)=1/5`
`1+x=1/5:7/6`
`1+x=6/35`
`x=6/35-1`
`x=-29/35`
Hoặc
`(0,1(6)+0,(3))/(0,(3)+1,1(6) × x)=0,(2)`
`(0,5)/(0,(3)+1,1(6)xxx)=0,2`
`1/2: (1/3 + 7/6xxx)=1/5`
`1/3+ 7/6xxx=1/2:1/5`
`1/3+ 7/6xxx=5/2`
`7/6xxx=5/2-1/3`
`7/6xxx=13/6`
`x=13/6:7/6`
`x=13/7`
