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Free_Kalibri [48]
3 years ago
14

Someone please help with this!! Will mark for brainliest!!!!!!!! Please please help!

Mathematics
2 answers:
MatroZZZ [7]3 years ago
8 0

Answer:

x = 12

Explanation:

3x + 54 = 90

3x = 36

x = 12

trasher [3.6K]3 years ago
8 0

Answer:

12

Step-by-step explanation:

1) AED and BEC are vertical angle, therefore they are equal.

AED = BEC = 90

2) 90 = 3x + 54

3x = 36

x = 12

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