Respuesta :

[tex]x+ \frac{6}{3} + x + \frac{9}{9} = x + 4 x + 2 + x + 1 = x + 4[/tex]
 [tex]2x + 3 = x + 4 [/tex]
[tex]x = 1[/tex]
X-6/-3+x+9/9=x+4
Final answer is x=5