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Mathematics 9 Online
OpenStudy (anonymous):

simplify the following expression 3x-4y+3z-3x-y+2z

OpenStudy (uri):

3x-3x-4y-y+3z+2z Can you do it now?

OpenStudy (anonymous):

would it be 6x-5y+5z?

OpenStudy (uri):

Nah +3x-3x will be cancelled.

OpenStudy (anonymous):

hmmm confused haha sorry

OpenStudy (uri):

When we have +x and -x it is cancelled So, -5y+5z is the answer.

OpenStudy (anonymous):

so +x and -x cancel?

OpenStudy (anonymous):

oh thanks :)

OpenStudy (uri):

Yes :)

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