Respuesta :

Answer:

-16-7(2a+3)=23-2a

-23(2a+3)=23-2a

-16-7= 23

multiply -23 from 2a and +3

-46a [ we know - + always -] -69 =23 - 2a

-46a -69 = 23- 2a

-46a - 69 = 23-2a

-46a + 2a = 23 + 69

-44a = 92

a= -92/44

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