Addition (Easy)
7x + 3x
10x
8x - 4x
4x
5x2 + 6x2
11x2
3m3 - 10m3
-7m3
-6x + x + 2x
-3x
-8x - 2x - 3x
-13x
5x2 + 6x2 + 7x2
18x2
3x2 - 4x2 -5x2
-6x2
7xy + 2xy + xy
10xy
5xy - xy - 11xy
-7xy
3a+4b+2a+5b
5a+9b
5a - 6b - 4a - 7b
a - 13b
-4x2 + 6x2 + 2x2
4x2
-5x2 - 7x2 - 3x2
-15x2
5x2 + 4x3 + 3x2 + x3
8x2 + 5x3
7x2 - 6x3 - 5x2 - 2x3
2x2 - 8x3
1/2 x + 2/3 x + 3/4 x
23/12 x
2/3 x - 3/4 x - 4/5 x
-53/60 x
-11/4 uw + 2/7 w + 2uw + 9/7 w
-3/4 uw + 11/7 w
-12/5 uw - 3/8 w - 3uw - 10/9 w
-27/5uw -107/72w