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Mathematics 7 Online
OpenStudy (twistrose):

Simple question, just want to know if I did it right. If not, please explain how to do it. 42-81=-41 Is this right?

OpenStudy (johnweldon1993):

Hint* If you subtract 42 from both sides of this equation...does it come out true?

OpenStudy (twistrose):

ok i got 39 so is it negative or positive

OpenStudy (johnweldon1993):

There we go...and lets see \[\large 42 - 81 = -(81 - 42) = -39\]

OpenStudy (twistrose):

ok thank you so much

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