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algebra

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Describe and correct error

[-13]- [13]
= -13 - 13
= -26

thanks

  • algebra -

    From your information, I don't see an error. May the error is asking you to describe one.

  • algebra -

    wait. are the brackets around the numbers saying to find their absolute value, or is that just ot separate them?

  • algebra -

    Absolute numbers are not indicated by brackets "[]" but by straight lines "II".

    I-13I - I13I = 0

    (The vertical lines should be longer, but I don't know how to print them on the computer.)

  • algebra -

    thanks they were straight lines so I am going with 0 thanks

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