Question

2(x-5)-3(x+7)=14

Answer 1

\(2\left(x-5\right)-3\left(x+7\right)=14\)

\(\Rightarrow2x-10-3x+21=14\)

\(\Rightarrow2x-3x=14+21+10\)

\(\Rightarrow-x=45\)

\(\Rightarrow x=-45\)

Vậy...

Answer 2

`2(x-5)-3(x+7)=14`

`2x-10-3x-21=14`

`-x-31=14`

`x=-31-14`

`x=-45`