Kyrabanks15 Kyrabanks15
  • 20-08-2014
  • Mathematics
contestada

How do you find the value of 5x-7=7x-17?
And 3x+9=44-2x and 3x+6=x+2

Respuesta :

luana
luana luana
  • 20-08-2014
[tex]1.\\3x+9=44-2x\\\\3x+2x=44-9\\\\5x=35\ |:5\\\\x=7\\\\2.\\3x+6=x+2\\\\3x-x=2-6\\\\2x=-4\ |:2\\\\x=-2[/tex]
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