Question

tính hợp lí:

56 - 6 ( 7 - x ) = 50

 

Answer 1

`56-6(7-x)=50`

`=>50(7-x)=50`

`=>7-x=1`

`=>x=7-1`

`=>x=6`

Answer 2

\(56-6(7-x)=50\)

\(6\left(7-x\right)=56-50\)

\(6(7-x)=6\)

\(7-x=6:6=1\)

\(x=7-1\)

\(x=6\)

Answer 3

\(56-6\left(7-x\right)=50\)
\(\xrightarrow[]{}6\left(7-x\right)=56-50\)
\(\xrightarrow[]{}6\left(7-x\right)=6\)
\(\xrightarrow[]{}7-x=6:6\)
\(\xrightarrow[]{}7-x=1\)
\(\xrightarrow[]{}x=7-1\)
\(\xrightarrow[]{}x=6\)

Answer 4

56-6(7-x)=50

ko có dấu ở 6(7-x) à ?

Answer 5

56-6(7-x)=50

50(7-x)=50

7-x=50:50

7-x=1

x=7-1

x=6