Respuesta :

lesliekolleroxrkcf
DE + EF = DF
2(x+3) + 3(x-1) = 138
2x+6 + 3x-3 = 138
5x=135
x=27
DE Is 60 and ef is 78

4x+7=5x-4
x=11

3 is 78°
matthavan
This is the solution in the image. Hope this helps
Ver imagen matthavan

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