tolong jawab dengan cara

A = B
5x - 10 = 3x + 20
5x - 3x = 20 + 10
2x = 30
x = 30/2
x = 15

A = 5x - 10 = 5.15 - 10 = 65
B = 3x + 20 = 3.15 + 20 = 65

<A = <B
(5x - 10)° = (3x + 20)°
5x - 3x = 20 + 10
2x = 30
x = 15°

<A = <B = 5x - 10 = 5(15) - 10 = 75 - 10 = 65°


semoga membantu