cel7 cel7
  • 15-09-2017
  • Mathematics
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Solve 1/5(15b-7)=3b-9

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hughess
hughess hughess
  • 15-09-2017
1/5(15b-7)=3b-9
3b-1 1/5=3b-9
-3b         +1 1/5
---------------------
b=-7 4/5
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