" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
4x + y = 26 * 3 => 12x + 3y = 78 dikurangan
-23y = 64
y = -2 => 4x + -2 = 26 ; 4x = 28 ; x = 7
jadi y = 2 dan x = 6
12x-20y=124
12x+3y=78
------------------- --
-23y= 46
y= -2
kedua:
4x+(-2)=26
4x=28
x=7
jadi: x=7 dan y=-2