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raebaby420

  • 3 years ago

Solve the system 3x – 2y = 7 and 9x – 6y = 3 What is the solution to the system?

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  1. JamesJ
    • 3 years ago
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    If you divide the second equation throughout by 3 we get 3x - 2y = 1 Now, is that consistent with the first equation, 3x - 2y = 7 ?

  2. raebaby420
    • 3 years ago
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    Umm yes?

  3. JamesJ
    • 3 years ago
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    No. Because the second equation implies 3x - 2y = 1 But the first equation is 3x - 2y = 7 If both equations where true, then that would imply that 7 = 1 which cannot be true!! We say that this system of equations is inconsistent, which means it leads to nonsense. Hence there are no solutions to both equations.

  4. JamesJ
    • 3 years ago
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    Make sense?

  5. raebaby420
    • 3 years ago
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    YES!! Thank you for explaining

  6. JamesJ
    • 3 years ago
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    Great

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