Eric is playing a video game. At a cerain point in the game, he has 3,150 points. then the following events happen, in order:

*he earns 2,450 additional points

*He loses 3,310 points

*The game ends, and his score doubles.

Write an expression for the number of points Eric has at the end of the game. Do no evaluate the expression. The expression should keep track of what happens in each step listed above. (HINT: this is a mathematical statement showing how you would solve this problem)