3 years ago

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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