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How do I solve this? Number 15.

How do I solve this? Number 15.-example-1
User Darrell
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Since EB bisects AEC, we know that AEB and BEC have the same angle measurement (bisecting makes the values equal). That means BEC is 4x+1. So we can add all the measurements,
4x+1+4x+1+3x
=11x+2
User Fulmicoton
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