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Lera25 [3.4K]
3 years ago
10

Pleaseeee helpppp !!!!!! Will mark Brianliest !!!!!!!!!!!!!!

Mathematics
1 answer:
Reil [10]3 years ago
8 0

Answer:

8

Step-by-step explanation:

AC=2DE

48-4x=2(64-7x)=128-14x

14x-4x=128-48

10x=80

x=80/10=8

DE=64-7x=64-7*8=64-56=8

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