Question

Giúp mik vs ah

Answer 1

bài `2`

`a, x-1/2 =-3/4`

`=> x=-3/4 +1/2`

`=> x=-3/4 +2/4`

`=> x= -1/4`

`b, x+1/6 =-3/8`

`=> x=-3/8 - 1/6`

`=>x= -13/24`

`c, x-2/3 =3/5 -1/4`

`=> x-2/3 =7/20`

`=>x= 7/20 +2/3`

`=>x= 61/60`

`d, x-1/4 = 5/8 . 2/3`

`=> x-1/4 =5/12`

`=>x= 5/12 +1/4`

`=>x=  5/12 + 3/12`

`=>x=  2/3`

`e, 4/5 -x=-8/35`

`=>x= 4/5-(-8/35)`

`=>x= 4/5+8/35`

`=>x= 36/35`

`f, 11/12 x +3/4=1/6`

`=> 11/12 x =1/6-3/4`

`=> 11/12 x =-7/12`

`=>x=-7/12 : 11/12`

`=>x=-7/12 xx 12/11`

`=>x= -7/11`

`g, 2/9 - 2/7 x= 1/3`

`=> 2/7 x= 2/9- 1/3`

`=> 2/7 x=-1/9`

`=>x=-1/9 : 2/7`

`=>x=-1/9 xx 7/2`

`=>x= -7/18`

`h, x + (-7/15) = -1 1/20`

`=> x + (-7/15) =-21/20`

`=>x= -21/20 - (-7/15)`

`=>x= -21/20+7/15`

`=>x=-7/12`

`i, 3 1/5 x -7/10 = 1 3/5`

`=> 16/5 x -7/10 =8/5`

`=> 16/5 x =8/5 + 7/10`

`=> 16/5 x =23/10`

`=>x= 23/10 : 16/5`

`=>x= 23/10 xx 5/16`

`=>x= 23/32`

`b, x -1/2 = 3/4 : 3/2`

`=> x -1/2 = 3/4 xx 2/3`

`=> x -1/2 = 1/2`

`=>x= 1/2+1/2`

`=>x=1`

`k , 4/5 -1/2 x=1/10`

`=> 1/2 x=4/5 -1/10`

`=>1/2 x=7/10`

`=>x= 7/10 :1/2`

`=>x= 7/10 xx 2`

`=>x=7/5`

Answer 2

  

Answer 3

a: x=-3/4+1/2=-3/4+2/4=-1/4

b: =>x=-3/8-1/6=-9/24-4/24=-13/24

c: =>x=3/5-1/4+2/3=36/60-15/60+40/60=61/60

d: =>x-1/4=10/24=5/12

=>x=5/12+1/4=5/12+3/12=8/12=2/3

e: =>x=4/5+8/35=28/35+8/35=36/35

f: =>x*11/12=-1/6-3/4=-2/12-9/12=-11/12

=>x=-1

g: =>2/7x=2/9-1/3=-1/9

=>x=-1/9:2/7=-1/9*7/2=-7/18

k: =>x-7/15=-21/20

=>x=-21/20+7/15=-63/60+28/60=-35/60=-7/12

k: =>x-1/2=3/4*2/3=1/2

=>x=1