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natulia [17]
3 years ago
13

Find the value of x Show your work

Mathematics
1 answer:
9966 [12]3 years ago
5 0

Answer:

x = 13

Step-by-step explanation:

These angles are vertical which means they’re EQUAL to each other:

6x + 3 = 81

6x = 81 - 3

6x = 78

x = 13

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