rayford
  • rayford
2x+y=6 -4x+2y=4 solve using the elimination method
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
2(2x+y)=2(6) 4x+2y=12 add them -4x+2y=4 -4x+4x+2y+2y=16 4y=16
anonymous
  • anonymous
elimination mean's solve for one variable. this can be done by simple subtraction of on equation from the other.
anonymous
  • anonymous
divide both sides by 4 and you got your y. Use that y and plug it in into any equation and then solve for x

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rayford
  • rayford
thank youits! 1,4!
rayford
  • rayford
may you answer another?
anonymous
  • anonymous
good job mate!
anonymous
  • anonymous
Yeah just post it in another question
rayford
  • rayford
x+2y=10 x-y=4 use substituion

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