a,1/2(4/5-3/2)+x=5(x-1/3) b,1/2x-5/3=1/4(1/2-4) #giúp vs ạ.cảm ơn

`a,`

`1/2 * (4/5 - 3/2) + x = 5(x - 1/3)`

`=>- 7/20 + 5/3 = 5x - x`

`=>x= 79/240 `

``

`1/2 * x - 5/3 =1/4 ( 1 /2 -4)`

`=>1/2 * x - 5/3 = 1/4 * (- 7/2)`

`=>1/2 * x = 19/24`

`=>x = 19/12`

`@sad2006`