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EmmaH

  • one year ago

For which system of equations would elimination be the simplest technique to choose? y = 2x and x + 3y = 5 4x + 3y = 6 and 3y = 5 x + y = 7 and x - y = 12 3x - 2y = 8 and 4x - 5y = 20

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  1. tcarroll010
    • one year ago
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    The first one is the simplest because you already have an expression for "y" defined. That is, "y" is all by itself on the left side.

  2. EmmaH
    • one year ago
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    thanks!

  3. tcarroll010
    • one year ago
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    When solving the first system, you can take that expression for "y" and put it directly into the second equation: x + 3(2x) = 5

  4. tcarroll010
    • one year ago
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    You're welcome! Good luck to you in all of your studies and thx for the recognition! @EmmaH

  5. EmmaH
    • one year ago
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    no problem!=)) you too!

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