Respuesta:
Supongo que se trata de sumar términos semejantes.
1. m+n
2. m+(-n) = m-n
3. - 3a+4b
4. 5b+(-6b)= 5b-6b= -b
5. 7+(-6)= 7-6= 1
6. - 6+9= 3
7. - 7+(-6)= - 7-6= - 13
8. 5mn + (-m) = 5mn - m
9. 5a +7a = 12a
10. - 8x + (-5x)= - 8x-5x= - 13x
11. - 11+8m
12. 9ab+(-15ab)= - 9ab-15ab= - 24ab
13. - xy + (-9xy)= - xy-9xy = - 10xy
14. mn +(-11mn)= mn-11mn = - 10mn
15. 1/2a + (-2/3b)= 1/2a - 2/3b
16. 3/5b + 3\4c
17. 1/3b + 2/3b= b
18. - 1/2xy + (-1/2xy)= - 1/2xy - 1/2xy= - xy
19. - 3/5abc +(-2/5abc)= - 3/5abc - 2/5abc = - abc
21. 3/8mn +(-3/4mn)= 3/8mn - 3/4mn= - 3/8mn
22. a+b+c
23. a+(-b) +C = a-b+c
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Verified answer
Respuesta:
Supongo que se trata de sumar términos semejantes.
1. m+n
2. m+(-n) = m-n
3. - 3a+4b
4. 5b+(-6b)= 5b-6b= -b
5. 7+(-6)= 7-6= 1
6. - 6+9= 3
7. - 7+(-6)= - 7-6= - 13
8. 5mn + (-m) = 5mn - m
9. 5a +7a = 12a
10. - 8x + (-5x)= - 8x-5x= - 13x
11. - 11+8m
12. 9ab+(-15ab)= - 9ab-15ab= - 24ab
13. - xy + (-9xy)= - xy-9xy = - 10xy
14. mn +(-11mn)= mn-11mn = - 10mn
15. 1/2a + (-2/3b)= 1/2a - 2/3b
16. 3/5b + 3\4c
17. 1/3b + 2/3b= b
18. - 1/2xy + (-1/2xy)= - 1/2xy - 1/2xy= - xy
19. - 3/5abc +(-2/5abc)= - 3/5abc - 2/5abc = - abc
21. 3/8mn +(-3/4mn)= 3/8mn - 3/4mn= - 3/8mn
22. a+b+c
23. a+(-b) +C = a-b+c