Question

-8 : (4\(\dfrac{1}{5}\) x + \(\dfrac{3}{10}\) ) = -4\(\dfrac{4}{5}\)                                

Answer 1

`-8 : (4 1/5 x +3/10) =-4 4/5`

`=> -8: ( 21/5 x + 3/10) = -24/5`

`=> 21/5 x + 3/10=-8 : (-24/5)`

`=> 21/5 x + 3/10=-8 xx(-5/24)`

`=> 21/5 x + 3/10=5/3`

`=> 21/5 x= 5/3 -3/10`

`=> 21/5 x=41/30`

`=> x= 41/30 : 21/5`

`=> x= 41/30 xx 5/21`

`=>x= 41/126`

Vậy `x=41/126`

Answer 2

=>(4,2x+0,3)=8:4,8=5/3

=>4,2x=5/3-3/10=41/30

=>x=41/30:42/10=41/126