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aalyn [17]
3 years ago
7

Help me with this pls

Mathematics
1 answer:
Vilka [71]3 years ago
8 0

Answer:

A. 6x+12x+90=180

Step-by-step explanation:

to find x they must all add up to 180 degrees

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I hope this helps :)

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Step-by-step explanation:

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