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Given that m / ABC is a straight angle,

find m/ ABD and m/DBC.
A
(7x+14)º
B
D
(3x + 6)º
C

Given that m / ABC is a straight angle, find m/ ABD and m/DBC. A (7x+14)º B D (3x-example-1

1 Answer

3 votes

Answer:

The measurement of ABD is 126°.

The measurement of DBC is 54°

Explanation:

A straight line has a measurement of 180.

7x + 14 + 3x + 6 = 180 combine like terms

10x + 20 = 180 Subtract 20 from both sides

10x + 20 - 20 = 180 - 20

10x = 160 Divide both sides by 10


(10x)/(10) =
(160)/(10)

x = 16

ABD

7x + 14 Substitute in 16 for x

7(16) + 14

112 + 14

126

DBC

3x + 6 Substitute in 16 for x

3(16) + 6

48 + 6

54

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