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anonymous

  • one year ago

Maria wants to solve the following system using the elimination method: 4x + 9y = 59 x + y = 17 What number should the equation x + y = 17 be multiplied by to eliminate y?

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  1. welshfella
    • one year ago
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    you have 9y in the first equation - so what should we multiply equation 2 by?

  2. welshfella
    • one year ago
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    we have y in the second equation and we want it to be 9y

  3. anonymous
    • one year ago
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    -9 @welshfella

  4. welshfella
    • one year ago
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    that correct - so when you add the equations the y will be eliminated

  5. welshfella
    • one year ago
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    you could also multiply by 9 and subtract but its not usually recommended as subtracting , especially if there are negative terms, is not so easy

  6. anonymous
    • one year ago
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    thank you so much @welshfella

  7. welshfella
    • one year ago
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    yw

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