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17-05-2021
Mathematics

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Аноним Аноним

17-05-2021

=>3x+20=5x-10

=>3x+20-20=5x-10-20

=>3x=5x-30

=>-2x=-30

=>x=15

Therefore,measure of angleCBD=3x+20=3×15+20=65°

Hence, Option D is correct

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