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OpenStudy (anonymous):
Which of the following expressions could be simplified further? 2x + 3m + 7n + 4z − 5p 6x − 7m + 9x 4x + 3m − 5z + 8a 2x + 3m − 5y + 4z
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OpenStudy (anonymous):
Only one of those expressions has a variable in it twice. (In the first one, you only see x, m, n, z, p one time each.) Does that help?
OpenStudy (anonymous):
The second one. 6x could be added with 9x.
OpenStudy (anonymous):
first one
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