Respuesta :

Answer:

18

Step-by-step explanation:

Opposite sides of a rectangle are equal

Perimeter = 2(4y - 2) + 2(3y) = 66

8y - 4 + 6y = 66

Collect like terms

8y + 6y = 66 + 4

14y = 70

y = 70/14 = 5

Side XY = 4y - 2 = 4(5) - 2 = 20 - 2 = 18

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