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Blababa [14]
3 years ago
15

Something else i’m supposed to know

Mathematics
1 answer:
Andru [333]3 years ago
8 0

Answer:

x equals 9.

The largest angle is 90.

Step-by-step explanation:

10x + 3x + 7x = 180 \\   \frac{20x}{20}  =  \frac{180}{20}  \\ x = 9

x = 9 \\ 10x \\ 10(9) \\ 90

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