Respuesta :

The answer is  A.) 25

I just did 3x+10=5x and solved it
Angle AED is supplementary to angle AEB.
Angles AEB and DEC are vertical angles, so their measures are equal.

5x = 3x + 10

2x = 10

x = 5

m<AEB = 5x = 5 * 5 = 25

Angle AED is supplementary to <AEB, so

m<AED + m<AEB = 180

m<AED + 25 = 180

m<AED = 155

Answer is D.
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