can someone help me in maths

label Mathematics
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schedule 1 Day
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simplify

e+f+e+f+e

2xy+3xy-xy

Nov 11th, 2014

1-    3e+2f


2-     4xy

Nov 11th, 2014

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Nov 11th, 2014
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Nov 11th, 2014
Oct 22nd, 2017
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