tolong dibantu kasih carA

Sorry ngak tau gan maaf ya

∠A + ∠C = 180°
2y + 3y = 180°
5y = 180°
y = 180/5 = 36°
∠B + ∠D = 180°
7x + 5x = 180°
12x = 180°
x= 180/12= 15°
jadi x + y = 15°+36°=51°