anonymous
  • anonymous
For which system of equations would elimination be the simplest technique to choose?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
A. y = 2x and x + 3y = 5 B. 4x + 3y = 6 and 3y = 5 C. x + y = 7 and x - y = 12 D. 3x - 2y = 8 and 4x - 5y = 20
anonymous
  • anonymous
A, simply replace y with 2x in the second equation and you can solve for x
Mertsj
  • Mertsj
C Because if you just add the equations, y will be eliminated.

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Mertsj
  • Mertsj
@Lagrange That would be substitution.
anonymous
  • anonymous
though it said substitution ....
anonymous
  • anonymous
Thanks everyone! :)
anonymous
  • anonymous
C. x + y = 7 and x - y = 12

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