boo118 boo118
  • 31-12-2016
  • Mathematics
contestada

I'm confused with this

Im confused with this class=

Respuesta :

Jim4109
Jim4109 Jim4109
  • 31-12-2016
7b +3- 4b=3-3(b+4)
3b+3=3-3b-12
3b+3=-9-3b
6b+3=-9
6b=-12
b=-2
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