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Helen [10]
2 years ago
15

DE=3x,EF=x+1,and DF=1

Mathematics
1 answer:
liraira [26]2 years ago
8 0

Answer: 2.5

Step-by-step explanation:

3x+x+1=11\\\\4x+1=11\\\\4x=10\\\\x=2.5

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