Question

20% . X - X + \(\dfrac{1}{5}\)= \(\dfrac{3}{4}\)

Answer 1

x =7406/5 nha mjk coppy trên mang

Answer 2

sai thui

Answer 3

20%.x - x + \(\dfrac{1}{5}=\dfrac{3}{4}\)

=> \(\dfrac{20}{100}x-x+\dfrac{1}{5}=\dfrac{3}{4}\)

=> \(\dfrac{20}{100}x-x=\dfrac{3}{4}-\dfrac{1}{5}\)

=> \(-\dfrac{4}{5}x=\dfrac{11}{20}\)

=> x = \(-\dfrac{11}{16}\)

Answer 4

`20%x-x+1/5=3/4`

`=>0,2x-x=3/4-1/5`

`=>-0,8x=0,75-0,2`

`=>-0,8x=0,55`

`=>x=-0,6875`

Vậy `x=-0,6875`

Answer 5

20%.x-x+1/5=3/4

x/5-x+1/5=3/4

4x-20x+4=15

-16x=11

x=-11/16

Answer 6

\(20\%.x-x+\dfrac{1}{5}=\dfrac{3}{4}\) 

     \(x.\left(20\%-1\right)=\dfrac{3}{4}-\dfrac{1}{5}\) 

               \(x.\dfrac{-4}{5}=\dfrac{11}{20}\) 

                    \(x=\dfrac{11}{20}:\dfrac{-4}{5}\) 

                   \(x=\dfrac{-11}{16}\)