Respuesta :

Answer:

  • b = -9

Step-by-step explanation:

  • 2b - 3(1 + b) = -3(b + 7)
  • => 2b - 3 - 3b = -3b - 21
  • => -b - 3 = -3b - 21
  • => 2b = 3 - 21
  • => 2b = -18
  • => b = -9

Conclusion:

Hence, 'b = -9' is the answer.

Hoped this helped

[tex]BrainiacUser1357[/tex]

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