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andreev551 [17]
3 years ago
12

please help thank you

Mathematics
1 answer:
garik1379 [7]3 years ago
8 0

Answer:

n = 18

Step-by-step explanation:

(2n) and (n + 18) are vertically opposite angles and are congruent, then

2n = n + 18 ( subtract n from both sides )

n = 18

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Answer:

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<em>Hi</em><em> </em><em>there</em><em>!</em><em>!</em>

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