Respuesta :

Photon
Hello,

[tex]5 - 4 + 7x + 1 [/tex]
[tex]= 7x + 2[/tex]

[tex]5 - 4 + 7x + 1 = 0 [/tex]
[tex]7x = - 2 [/tex]
[tex]x = \frac{7}{-2} [/tex]

I don't know what i have to do for the last one.

Hope this helps !

Photon


Otras preguntas