Question

\(\dfrac{1}{2}x-2=2x+1\)

Answer 1

\(\dfrac{1}{2}x-2=2x+1\)

\(\Leftrightarrow2x-\dfrac{1}{2}x=-2-1\)

\(\Leftrightarrow\dfrac{3}{2}x=-3\)

\(\Leftrightarrow x=-3:\dfrac{3}{2}\)

\(\Leftrightarrow x=-2\)

Answer 2

`1/2x-2=2x+1`

`=> 2x-1/2x=-2-1`

`=> 3/2x=-3`

`=> x=-3 : 3/2`

`=> x=-2`

Vậy `x=-2`