Respuesta :

serenavass

Answer:

65

Step-by-step explanation:

5x+15 and 7x-5 are alternate interior angles

between two parallel lines so these angles are congruent.

5x+15=7x-5

15+5=7x-5x

20=2x

x=10

7x-5=7*10-5=70-5=65

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