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Mathematics 9 Online
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

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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