So to solve for y, subtract 108 from each side.
The equation becomes -y=126
Since you don't want y to be negative then divide each side by -1 this will flip all of the signs (positives become negative and vice versa) without changing the number.
So the equation is now y= -126
I am struggling thinking it is either the first or third one. Hope I narrowed it down a bit.
If i did it right the anwser is 20
Each term is (the previous term increased by 20).
The next 3 terms are <em>114, 134, 154 .</em>
