" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x+ y = 2
x - 2y = 5
------------(-)
3y = - 3
y = -1 --> x = 2 - y = 3
titik potong (x,y) = (3,- 1)
garis tegak lurus dgn garis 4x + 2y =1 melalui (3, -1)
= 2x - 4y = 2(3) - 4(-1)
2x- 4y= 10
x - 2y = 5
...