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OpenStudy (anonymous):
Simplify the following expression. 2x − 2y + 3z − 2x − y + 2z = ? My answer is 4x − 3y + 5z Am I right?
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OpenStudy (anonymous):
No, your answer is 5z-3y. the x cancel out.
OpenStudy (anonymous):
Ohh Ok! Thanks! :)
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