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Brrunno [24]
4 years ago
11

Equation practice with angle addition please help ​

Mathematics
1 answer:
grandymaker [24]4 years ago
4 0

Answer:

∠ CBD = 63°

Step-by-step explanation:

∠ ABC + ∠ CBD = ∠ ABD, substitute values

7x - 9 + 6x + 27 = 96, that is

13x + 18 = 96 ( subtract 18 from both sides )

13x = 78 ( divide both sides by 13 )

x = 6

Thus

∠ CBD = 6x + 27 = 6(6) + 27 = 36 + 27 = 63°

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3 0
4 years ago
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