Answer:
12x - 6 = 30
Add 6 to each side to equal out the equation. We add because the 6 is negative.
12x - 6 = 30
+6 +6
12x = 36
Now divide each side by 12 to get x by itself.
12x = 36
/12 /12
x = 3
good thing I kept this homework answer sheet in my butt for all these years to help someone.
Explanation: