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AB intersects CD at E. If m<AED is represented by 2x-5 and m<BEC is represented by x+15, find m<BED

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But AED and BEC are opposite angles and equal so
2x-5 = x+15
x = 20

AED + BED = 180
but AED = 2(20) - 5 = 35
so
35 + BED = 180
BED = 145

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