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X+Y=90
X = 2Y -15
entonces
2Y - 15 + Y = 90
3Y=105
Y = 35
X= 55
El segundo angulo = x
El primer angulo = 2x - 15°
x + 2x -15 °= 90°
3x = 90° + 15°
3x = 105°
x = 105°/3
x = 35°
Un angulo mi de 35°
El otro angulo = 2x - 15° = 2* 35° -15°= 70° - 15° = 55°