adrianaclaytonn adrianaclaytonn
  • 22-02-2017
  • Mathematics
contestada

how do i do this?? Can you please help ? :)

how do i do this Can you please help class=

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Аноним Аноним
  • 22-02-2017
-3(b-4) = -2b
-3b + 12 = -2b
-3b + 3b + 12 = -2b + 3b
12 = b
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