Answer:
DE=10
Explanation:
CD+DE=CE
4x+14x-18=18
18x=18+18
x=36/18
x=2
DE=14x-18
DE=14(2)-18
DE=28-18
equation:
18=4x+(14x-18)
18=18x-18
36=18x
14(2)-18
28-18=10
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