" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
3x+y-2=0
x-y=-2→y=x+2
3x+x+2=2
4x=2-2
4x=0
y=0:4
y=0
x-y=-2
x-0=-2
x=-2
odp. a jest poprawna
na 100 %
3x+y-2=0
x=y-2
3*(y-2)+y-2=0
x=y-2
3y-6+y-2=0
x=y-2
4y-8=0
x=y-2
4y=8
x=y-2
y=2
x=2-2
y=2
x=0
y=2
odp. c