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Mathematics 19 Online
OpenStudy (anonymous):

Evaluate −(n + 3) when n = -9

OpenStudy (solomonzelman):

plug in -9 instead of n, into the eqution.

OpenStudy (solomonzelman):

equation*

OpenStudy (solomonzelman):

\(\large\color{black}{ \displaystyle -(\color{red}{-9} + 3)}\)

OpenStudy (solomonzelman):

can you finish it ?

OpenStudy (anonymous):

i get -7 but what about that minus sign outside of the brackets

OpenStudy (solomonzelman):

1. what is 9 - 3 ? 2. OK, THEN what is -9 + 3 (when a greater number is negative) ? 3. OK, THEN what is the result in step 2, multiplied times (-1) ? (flip the sign)

OpenStudy (anonymous):

6

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