Question

4a+7b-3c+27a-14b-4c=

Answer 1

$4a + 7b - 3c + 27a - 14b - 4c = 4a + 27a + 7b - 14b - 3c - 4c =$

$31a - 7b -7 c$

Answer 2

Hola! :3

Resolvemos:

4a+7b-3c+27a-14b-4c

4a+27a+7b-14b-3c-4c

(4+27)a+(7-14)b+(-3-4)c

31a+(-7)b+(-7)c

31a-7b-7c

Espero haberte ayudado :D

Atte: Jean07122006