Answer :

baabaagreysheep
The original sum has (+3) + (-8) + (+1), whereas in her rewritten version, the 1 is negative and the 8 is positive, which is incorrect. If we were answer the first, it would equal -4, but if we were to answer the second, it would equal 10. I hope this helps!
calculista

Answer:

Rita made the [tex]1[/tex] negative and the [tex]8[/tex] positive

Step-by-step explanation:

we have

[tex]3+(-8)+1[/tex]

eliminate the parenthesis

[tex]3+(-8)+1=3-8+1=-4[/tex] ----> in the expression the [tex]1[/tex] is positive and the [tex]8[/tex] is negative

Rita made the [tex]1[/tex] negative and the [tex]8[/tex] positive

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