sabihanaziry2000
sabihanaziry2000 sabihanaziry2000
  • 13-04-2016
  • Mathematics
contestada

what is the value of x in the following proportion? 7/x-5 = 15/x+4

Respuesta :

pegah
pegah pegah
  • 13-04-2016
For this question you should first add -15/x on both sides of the equation and then add +5 on both sides:
7/x - 15/x = 5 + 4 
-8/x = 9 
so now you can multiply both sides by x:
-8 = 9x 
now you should divide both sides by 9:
-8/9 = x :)))
I hope this is helpful
have a nice day
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