" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x - y = -3 dikalikan 4
menjadi
8x - 6y = 2
8x - 4y = -12 _
-2y= 14
y = 14/-2
y = -7
ambil satu ruas
8x -6y = 2
8x -6(-7) = 2
8x +42 = 2
8x = 2 - 42
8x = -40
x = -40/8
x = -5
maka nilai
3x -2y = 3(-5) - 2(-7)
= -15 + 14
= -1