Respuesta :

Answer:

x=12°

Step-by-step explanation:

3x+6+48=90

3x+54=90

3x=90-54

3x=36

x=36/3

x=12

x=12°
Because 48 and (3x+6) are complementary
So 48+(3x+6)=90
3x=90-48-6
x=(90-48-6)/3
x=12

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