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OpenStudy (anonymous):
E is the midpoint of DF, DE=2x+4, and EF = 3x-1. Find DE, EF, and DF
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OpenStudy (abmon98):
3x-1=2x+4 3x-2x=4+1 x=5
OpenStudy (abmon98):
DE=2x+4-->2(5)+4=14 EF=3x-1--->3(5)-1=14 DF is EF added to DE 14+14=28
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