djdempsey djdempsey
  • 22-03-2017
  • Mathematics
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dogmando55 dogmando55
  • 22-03-2017
 5x+8=7x-4 
x=6 
5(6)+8=38 
7(6)-4=38 
38+38=76 
360-76=284 
284/2=142 
142=angle ABC
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