Answer: -2 or 6
Step-by-step explanation
Draw out a number line if one hasn't been given to you.
Mark the point E at 2 on the number line.
Then move 4 spaces to the right to arrive at 6 on the number line (because 2+4 = 6). This is one potential location for G.
Another potential spot for point G is -2. This time we start at 2 and move 4 units left.
The diagram is shown below.