Question

Tìm x

20 - 2 ( x+4) = 4

Answer 1

\(20-2\left(x+4\right)=4\)

\(2\left(x+4\right)=16\)

\(x+4=8\)

\(x=4\)

 

Answer 2

`20 - 2 ( x+4) = 4`

`2.(x+4)=20-4`

`2.(x+4)=16`

`x+4=16:2`

`x+4=8`

`x=8-4`

`x=4`

Vậy `x=4`

Answer 3

20 - 2 ( x + 4 ) = 4

       2 ( x + 4 ) = 20 - 4

       2 ( x + 4 ) = 16

            x + 4    = 16 : 2

            x + 4    = 8

             x          = 8 - 4

             x          = 4

Vậy x - 4