22x
10x + 12x
5b
6b - b
4t
11t - 7t
-2n + 7
n + 7 - 3n
-11 + 6b
-11 + 7b - b
2r
5r - 3r
-10x + 8b
-3x + 8b - 7x
5t + 7b
6t + 7b - t
4x - 12
5x - 1x - 12
8a
a + 7a
8b - 4a
5b - 4a + 3b
-6c + 3 t
6t - 7c + c - 3t
-6 + a
-4 + a - 2
10x + 9
9x + 7 +1x - 2 + 4
-3g - 3h
-13g + 4h +10g - 7h
-9b + 3t + 9
-8b + 3t - b + 9
5x
12x - 7x
7a - 3p
p + 6a - 4p + a
-3a + 8b
a - a + 2b - 3a + 6b
14t - 7
t - 7 + 13t
2y - 4a
3y + a - y - 5a
r - 25b
r - r + r - 12b - 13b
-z + 14x
4x + 3z - 4z + 10x
-11t +12z
-8t + z - 3t + 11z
11h - 4 + 3t
3h - 4 + 6t +8h - 3t
9a
6a + 3a
-x
p - p + 10x - 11x
5x
-9x + 14x
6y + 13
7y + 13 - y
9x - 10t
4x + 6x - x + t - 11 t
t
t - t + t