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Kitty [74]
3 years ago
7

I NEED HELP PLEASE DONT SEND ME LINKS TO WEBSITES. ANSWER THE QUESTION HERE THANK YOU.

Mathematics
1 answer:
mote1985 [20]3 years ago
7 0

Answer:

33

Step-by-step explanation:

The two angles add up to 180 degrees because a straight line is 180 degrees

<em>Add both equations and set equal to 180</em>

3m + 138 + 7m +12 = 180

<em>Algebra yeet</em>

<em>Simplify</em>

10m +150 = 180

10m = 30

m = 3

Angle DBC is (7m + 12):

<em>Substitute m = 3</em>

7(3) + 12 = 21 + 12 = 33 degrees

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