Respuesta :

Gxzy

[tex]\tt{\red{using \: the }}\tt{\purple{\: factor \: formula }}[/tex]

[tex]2x - 6 = 12 \\ 2x - 6 + 6 = 12 + 6 \\ 2x = 12 + 6 \\ 2x = 18 \\ x = \frac{18}{2} \\ x = 9[/tex]