brittenyhartse brittenyhartse
  • 30-11-2017
  • Mathematics
contestada

3x+4y=19 and 3x+6y=33 solve by elimination

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altavistard
altavistard altavistard
  • 03-12-2017
Just subtract the 1st equation from the 2nd, as follows:

  3x+6y=33
-(
3x+4y=19)
-----------------
         2y= 14, and y = 7.   Sub 7 for y in either of the original equations to obtain the value of x.  Write your answer in the form  (x, 7).
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