kaliboone36
kaliboone36 kaliboone36
  • 19-04-2017
  • Mathematics
contestada

twice the difference of a number and 4 is equal to three times the sum of the number and 7. find the number
the number is=

Respuesta :

rtrim03
rtrim03 rtrim03
  • 19-04-2017
Let the number be x 
Then According to the equation : 
2(X-4)=3(x+5) 
2X-8=3X+15 
-23=3X-2X 
X=-23
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reganscute
reganscute reganscute
  • 19-04-2017
the answer would be -8/5, 

hope this helps. ((';
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