" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x-2y+2=0
- x-y+4=0
x-2y+2=0
-3y=-6
y=2
x+y-4=0/*2
x-2y+2=0
2x+2y-8=0
x-2y+2=0
3x=6
x=2
x=2
y=2
x+y=0+4
xy=4
nie wiem czy dobrze:)
x-2y+2=0
x-2y=0-2
x-2y=-2