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Anastaziya [24]
3 years ago
8

Please Help me. What is the answer?

Mathematics
1 answer:
vekshin13 years ago
5 0

Answer:

-11

Step-by-step explanation:

Triangle ABC

SO,

AB = AC +BC

x + 8 = 2x -5 + (BD + DC)

x + 8 = 2x-5 + 10 +14

x + 8 = 2x + 19

2x - x = -19 + 8

x = -11

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