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Mathematics 19 Online
OpenStudy (anonymous):

Evaluate -x for x = -3

sammixboo (sammixboo):

So you would have -(-3), right?

OpenStudy (anonymous):

oooh

OpenStudy (anonymous):

but dont you have to simplify

OpenStudy (anonymous):

You are just multiplying by \(-1\) to \(x\)..

sammixboo (sammixboo):

Right :) -(-3) When having two negative signs next to each other, they turn into a positive sign. Let me give you a few examples 3 - (-2) Combined the two negative signs 3 + 2 So 3 - (-2) = 3 + 2

sammixboo (sammixboo):

So that would make -(-3) a _________ number?

OpenStudy (anonymous):

posotive

OpenStudy (anonymous):

positive

sammixboo (sammixboo):

Right! So -(-3) = 3

OpenStudy (anonymous):

thanks i get it now

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