" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x+y =13 |x2| 2x+2y=26
----------------------------------- -
-x = -9
x = 9
subtitusi ke x+y=13
9+y = 13
y = 13-9
y = 4
- x+2y=17
x+y=13
misal : x= 13-y (kita ambil dari x+y=13)
- x+2y = 17
13-y +2y = 17
13 + y = 17
y = 17- 13
y = 4
* semoga membantu!!!