Respuesta :

Answer:

SN = 25

Step-by-step explanation:

30 - 12 = 18 (DL)

Since the triangles are similar: 18/30 = 3/5 = (2x + 7)/(6x + 1)

Cross multiply: 5(2x + 7) = 3(6x + 1)

10x + 35 = 18x + 3

8x + 3 = 35

8x = 32

x = 4

SN = 6(4) + 1 = 25

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