carolguimarães2003
carolguimarães2003 carolguimarães2003
  • 19-09-2016
  • Mathematics
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7 (x-4) = 5x + 18
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coolcamcam26 coolcamcam26
  • 19-09-2016
7 (x-4) = 5x + 18
7x - 28 = 5x + 18
-5x         -5x
------------------------
2x-28=18
   +28   +28
 -------------------
 2x = 46
-----  ------
 2       2
 x= 23    
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