C E O (5x - 21)° (4x)⁰ B What is the value of x if mZDBC is 105°? Please show work

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Chris Kowalski asked Sep 2, 2023

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25 votes

C

E
O
(5x - 21)°
(4x)⁰
B
What is the value of
x if mZDBC is 105°?
Please show work

Mathematics
college

Chris Kowalski asked Sep 2, 2023

by Chris Kowalski

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1 Answer

19 votes

Answer:

x = 14

Explanation:

m<DBC = m<DBE + m<EBC

105 = 4x + 5x - 21

105 = 9x - 21

126 = 9x

9x = 126

x = 126/9

x = 14

Phil Carter answered Sep 9, 2023

by Phil Carter

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