Respuesta :

[tex]2x+3=x+3+x[/tex]

[tex]2x+3=2x+3[/tex]

[tex] 2x-2x=3-3[/tex]

[tex] 0=0[/tex]

x∈R
2x + 3 = x + 3 + x has no solution
because if you rearrange it:
 2*x+3-(x+3+x)=0 it would equal 0