Question

de la suma de 4/7a + 2/3b - 1/3 con 7/21a - 6/3b + 8/3 resta a - 4b + 21

Answer 1

Respuesta:

19/21a +8/3b-56/3

Explicación paso a paso:

(4/7a + 2/3b - 1/3) + (7/21a - 6/3b + 8/3) - ( - 4b + 21)

= 4/7a + 2/3b - 1/3 + 1/3a - 2b + 8/3 - ( - 4b + 21)

= 4/7a+1/3a +2/3b-2b -1/3+8/3 - ( - 4b + 21)

= 12+7/21a+2-6/3b + 7/3 - ( - 4b + 21)

= 19/21a -4/3b +7/3 +4b-21

= 19/21a -4/3b+4b+7/3-21

= 19/21a -4+12/3b +7-63/3

= 19/21a+8/3b-56/3