Hey there!
Substitute the [tex]"a"[/tex] by itself as a [tex]1[/tex]
Our problem becomes: [tex] -\frac{1}{6}a + 8 = 12 [/tex]
Make sure we get everything away from the fraction (including [tex]"a"[/tex] ) by subtracting [tex]8[/tex] on each of your sides!
Like: [tex] -\frac{1}{6}a + 8 - 8 \\ =12 - 8 [/tex]
Cancel the two [tex]8[/tex]'s
Our problem becomes: [tex] -\frac{1}{6}a = 4 [/tex]
Now we have to multiply by [tex]6 [/tex] on each of your sides
Like: [tex]6( -\frac{1}{6}a) \\ \frac{6}{-1} (4)[/tex]
Cancel the [tex]6[/tex]'s on the left side
[tex]a = -24 [/tex]
Good luck on your assignment and enjoy your day!
~[tex]MeIsKaitlyn:)[/tex]