" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
145=105+2x
2x =145-105
x= 40/2 = 20
x-15= 20-15 = 5° (A)
(85) + (2x + 20) = 145
⇒ 2x + 105 = 145
⇒ 2x = 145 - 105
⇒ 2x = 40
⇒ x = 40/2
⇒ x = 20°
maka
x - 15° = 20° - 15°
⇒ x - 15° = 5°
Jawab : A
Terimakasih semoga membntu