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Sonja [21]
3 years ago
11

25 points for all three . if you cant do all three thats okay

Mathematics
1 answer:
Tpy6a [65]3 years ago
8 0
I think:
a+a+2a+2a=180
6a=180
a=30

3x-12=x
2x=12
x=6

8-y=x
8-y=6
y=2
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