Respuesta :

Answer:

Step-by-step explanation:

IF you mean

(3/4)b = 9/4

THEN

b = (9/4)(4/3) = 36/12 = 3

IF you mean

3/(4b) = 9/4

THEN

3(4) = 9(4b)

12 = 36b

b = 12/36 = 1/3

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