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19)

If ∠EFG and ∠GFH are a linear pair,
m∠EFG = 2n + 21, and m∠GFH = 4n + 15.
What are m∠EFG and m∠GFH?

Could someone please help me out?

Thanks!
- Da Fash

3 answers

a linear pair make up a straight angle. So,

2n+21 + 4n+15 = 180

...

Thanks!

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