Sumar 2a+3b, a-b
a+2b
2a+2b
2a+3b
3a+2b
Sumar a+b-c, a+2b
a+2b-c
2a+2b+c
2a+3b-c
3a+2b-c
Sumar 3a-5b+2c, a+2b-c
4a-3b+c
4a+3b-c
3a-4b+c
3a+4b-c
Sumar 2a+b-4c, a-2b+3c, 3a+2b-c
6a-b+2c
6a+b-2c
6a+b+2c
6a-b-2c
Sumar a-2b-5c, 3a+2c, b+c
4a+b+2c
4a-b-2c
4a+b-4c
4a-b+4c