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sladkih [1.3K]
3 years ago
10

NO FILES I really need this one correct plz and thank you.

Mathematics
1 answer:
harina [27]3 years ago
7 0

Answer:

x=20°

Step-by-step explanation:

→ x+100+3x=180

→ 4x+100=180

→ 4x=180-100

→ 4x=80

→ x=\frac{80}{4}=20

x=20°

---------

hope it helps...

have a great day!!

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