Respuesta :

Answer:

x = 33 they are complementary angles

Step-by-step explanation:

66 + (x - 9) = 90

57 + x = 90

x = 33

Answer:

x = 33

Step-by-step explanation:

(x - 9) + 66 = 90

x - 9 + 66 = 90

x + 57 = 90

× = 90 - 57

x = 33

-TheUnknownScientist

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