Respuesta :

Answer:

b = 4 - 2a

Step-by-step explanation:

2b = 8 - 4a

b = (8 - 4a) / 2

b = 4 - 2a

Answer:

b=4-2a

Step-by-step explanation:

4a+2b=8

2a+b=4

b=4-2a

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