Question

Giúp e ạ

Answer 1

`3 7/8 .x - 2 3/4 . x = 10/8 - 1/6`

`31/8  . x - 11/4 .x = 5/4 - 1/6`

`31/8  . x - 11/4 .x =13/12`

`(31/8 - 11/4) . x = 13/12`

`(31/8 - 22/8).x = 13/12`

`9/8.x = 13/12`

`x=13/12 : 9/8`

`x=13/12 xx 8/9`

`x=26/27`

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`3/7 . ( x - 1 1/3) = 1/3 -1/21`

`3/7 . (x- 1 1/3) = 7/21 - 1/21`

`3/7 .(x - 1 1/3) = 2/7`

`x- 4/3 = 2/7 : 3/7`

`x-4/3 = 2/7 xx 7/3`

`x-4/3 = 2/3`

`x=2/3 + 4/3`

`x=6/3`

`x=2`

Answer 2

e: =>9/8x=13/12

=>x=26/27

f: =>3/7(x-4/3)=7/21-1/21=6/21=2/7

=>x-4/3=2/7:3/7=2/3

=>x=2

Answer 3

bt cách lm nhưng k chắc chắn :))))