First, you want to even out each side. [tex]11 = 12 - q [/tex] You need to inverse -q to +q and add to both sides to get [tex]11 + q = 12[/tex] Now you need to do the oppisite of add to 11 which is subtract it from both sides. [tex]q = 12 - 11[/tex] or [tex]q = 1[/tex]
