Combine and write the total number of extra large drinks ordered for each problem.
x + 2x=
3
3x
x+2
2x - x
4x + 2x
6
6x
6 + x
12x
6x - 3x
5x + x
2x + 2x=
7x - 5x
2x
2
3x - 2x
x + x =
