" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x+2y=2[x+y=1 dikali 2]
-------------- - [dikurang agar y nya habis]
2x-3z= -9
2x-3z= -9 kali 3
3x+2z=6 kali 2
6x-9z=-27
6x+4z=12
--------------- - [dikurang agar x nya habis]
-13z=-39
z= 3
subsitusi ke persamaan
3x+2z=6
3x+6=6
3x=0
x=0
subsitusi ke persamaan
2y-3z=-7
2y-9=-7
2y=2
y=1
x-y+z= 0-1+3=2