anonymous
  • anonymous
PLEASE HELP IM GONNA FAIL MATH Explain the procedure when using the elimination method to get rid of one of the variables
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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Firejay5
  • Firejay5
So explain how to do elimination
anonymous
  • anonymous
I'll give u a medal if u just pls give methe anwser
anonymous
  • anonymous
you must try to get one of the variables to equal 0

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anonymous
  • anonymous
do you need an example?
anonymous
  • anonymous
http://www.basic-mathematics.com/elimination-method.html
Firejay5
  • Firejay5
For example if you had 4a + 2b = 15 2a + 2b = 7 you would need to get the B's to equal zero in this case
anonymous
  • anonymous
if your dealing with systems of equations: http://www.wyzant.com/Help/Math/Precalculus/Systems_Of_Equations/Elimination_Method.aspx
Firejay5
  • Firejay5
so you would (2a + 2b = 7) *-1 and it would be this: -2a - 2b = -7
Firejay5
  • Firejay5
the B's now cancel out. 4a - -2a = 6a = 8 <---- 15 - 7 = 8
Firejay5
  • Firejay5
the answer would actually be 2a 4a + -2a = 2a = 22<---- 15 + 7 = 22. 2a = 22 then divide 2 from both sides to get A = 11. Then insert 11 into both equations and solve to get y

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