3 years ago

Please help me... I really need it.

Mathematics

1 answer:

MAXImum [283]3 years ago

8 0

Answer:

If you are writing a seesya let me help you

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3 years ago

HELP IS MUCH NEEDED :)

ElenaW [278]

∠ADC = 112°
∠ADC =6x + 7 + 12x - 3

Equate both:
6x + 7 + 12x - 3 = 112

Solve for x :
6x + 7 + 12x - 3 = 112

Combine like terms:
18x + 4= 112

Take away 4 from both sides:
18x = 108

Divide both sides by 18:
x = 6

Find ∠ADB:
6x + 7 = 6(6) + 7 = 43

Answer: ∠ADB = 43°

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