Reducion de terminos semejantes con distinto signo.
1. 8a−6a=2a
2. 6a−8a=−2a
3. 9ab−15ab=−6ab
4. 15ab−9ab=6ab
5. 2a−2a=0
6. −7b+7b=0
7. −14xy+32xy=18xy
8. −25x2y+32x2y=7x2y
9. 40x3y−51x3y=−11x3y
10. −m2n+6m2n=5m2n
11. −15xy+40xy=25xy
12. 55a3b2−81a3b2=−26a3b2
13. −x2y+x2y=0
14. −9ab2+9ab2=0
15. 7x2y−7x2y=0
16. −101mn+118mn=17mn
17. 502ab−405ab=97ab
18. −1024x+1018x=−6x
19. −15ab+15ab=0
