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adelina 88 [10]
3 years ago
8

Help please and thanks will mark as brainliest

Mathematics
1 answer:
Fofino [41]3 years ago
5 0
11)
x + x + x = 180
3x = 180
x = 60

12)
3x - 17 + x + 40 + 2x - 5 = 180
6x + 18 = 180
6x = 162
x = 27
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