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Kisachek [45]
3 years ago
10

Someone help me with this ..

Mathematics
1 answer:
Delicious77 [7]3 years ago
6 0
3x+12=4x-15\\
x=27\\\\
\angle ABC=2(3x+12)=2(3\cdot27+12)=2(81+12)=2\cdot93=186^{\circ}
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