Respuesta :

naǫ
[tex]x+2x+3=3x+3 \\ 3(x+1)=3 \times x + 3 \times 1 =3x+3 \\ \\ x+2x+3=3(x+1)[/tex]

Yes, they are equivalent.
konrad509
[tex]x+2x+3=3x+3=3(x+1)\Rightarrow \hbox{ YES}[/tex]