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OpenStudy (anonymous):
Simplify the following expression. 2x − 2y − 5z + 2x + 2y + 3z
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OpenStudy (anonymous):
group the x, y and z together and simplify
OpenStudy (anonymous):
2x + 2x - 2y +2y -5z +3z
OpenStudy (anonymous):
4x + 4y -2z ?
OpenStudy (anonymous):
no check -2y + 2y
OpenStudy (anonymous):
-2+2=?
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