Respuesta :

Answer:

b=18

Step-by-step explanation:

1) Add 2/9b to both sides:

3=5/9b-7

2) Add 7 to both sides:

5/9b=10

3) Multiply both sides by the reciprocal of 5/9:  (9/5)

b=90/5

4) Simplify:

b=18

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