algebra

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ok I have a algebra question how do you find the missing number for 42-9=43-? how do I get the answer and I need to understand it? I think the answer might be 45

  • algebra -

    42 - 9 = 33

    43 - ? = 33?

  • algebra -

    ooh okay yeah that was so easy now that I look at it thank you so much..it was 10

  • algebra -

    You're welcome. :-)

  • algebra -

    10

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