Respuesta :

Answer:

-3a-1/2b

Step-by-step explanation:

1/2(2a+b)-(4a+b)

2/2a+1/2b-4a-b

a-4a+1/2b-b

-3a+1/2b-2/2b

-3a-1/2b

Answer:

-3a -1/2 b

Step-by-step explanation:

1/2 (2a + b) - (4a + b)

Distribute

a + 1/2 b -4a -b

Combine like terms

a -4a  +1/2b - b

-3a -1/2 b