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hali12 Group Title

PLEASE HELP IM GONNA FAIL MATH Explain the procedure when using the elimination method to get rid of one of the variables

  • 2 years ago
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  1. Firejay5 Group Title
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    So explain how to do elimination

    • 2 years ago
  2. hali12 Group Title
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    I'll give u a medal if u just pls give methe anwser

    • 2 years ago
  3. XxhannahxX Group Title
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    you must try to get one of the variables to equal 0

    • 2 years ago
  4. XxhannahxX Group Title
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    do you need an example?

    • 2 years ago
  5. JoãoVitorMC Group Title
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    http://www.basic-mathematics.com/elimination-method.html

    • 2 years ago
  6. Firejay5 Group Title
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    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

    • 2 years ago
  7. Freak7820 Group Title
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    if your dealing with systems of equations: http://www.wyzant.com/Help/Math/Precalculus/Systems_Of_Equations/Elimination_Method.aspx

    • 2 years ago
  8. Firejay5 Group Title
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    so you would (2a + 2b = 7) *-1 and it would be this: -2a - 2b = -7

    • 2 years ago
  9. Firejay5 Group Title
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    the B's now cancel out. 4a - -2a = 6a = 8 <---- 15 - 7 = 8

    • 2 years ago
  10. Firejay5 Group Title
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    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

    • 2 years ago
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