\begin{array}{c}\color{#003366}{-Gw}\color{#005A9C}{en}\color{#007ACC}{St}\color{#00AEEF}{ac}\color{#00CFFF}{y}\color{#A4D3EE}{-}\color{#D3D3D3}{}\color{#E0E0E0}{}\end{array} 

`-2,3. x + 7,25 = 3,7.x - 4,75`

`-2,3.x - 3,7.x = -4,75 - 7,25`

`-6x = -4,75 - 7,25`

`-6x = -12`

`x = 2`

Vậy `x = 2`