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xenn [34]
3 years ago
6

Please help with this problem

Mathematics
1 answer:
Ratling [72]3 years ago
7 0

Since AOD and BOC are vertical angles,

we can conclude that 152=3x+x+x+12

Combine the like terms

152=5x+12

Subtract 12 on both sides

140=5x

Divide 5 on both sides.

140/5=28

x=28

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