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Mathematics 15 Online
OpenStudy (anonymous):

simplify. 2x-2y+3z-2x-y+2z

OpenStudy (luigi0210):

Combine like terms?

OpenStudy (anonymous):

oh but how do u work it out

OpenStudy (luigi0210):

Try adding "horse shoes" to separate the signs and numbers. |dw:1378936622519:dw|

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