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OpenStudy (anonymous):
Simplify the following expression: x - 4y + 5z - 3x - y + 2z = ? 2x - 5y + 7z -2x - 5y - 7z -2x - 5y + 7z -2x -5y + 3z
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OpenStudy (anonymous):
The third one is the correct one I think
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