" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x + y = 7
----------------- --
x = 5
2x + y =12 (x1) --> 2x +y = 12
x +y = 7 (x2) 2x +2y = 14
-------------------- --
-y = -2
y = 2
Himpunan Penyelesaiannya adalah { (5,2) }