Respuesta :

[tex]\bf \stackrel{\textit{distributing the 2}}{10j+12+2j}\qquad \qquad \stackrel{\textit{adding like-terms}}{12j+12}\qquad \qquad \stackrel{\textit{common factoring}}{12(j+1)}[/tex]
12j+12
12(j+1)
these are about it