" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x+y=7
x=10
20+y=7
x=10
y=7-20
x=10
y=-13
2. 5x-x=2+y+y
7x-3x-3y=2-y
4x=2+2y
14+14y-6-6y-3y=2-y
4x=2+2y
6y=2-8
4x=2+2y
6y=-6 /6
4x=2+2y
y=-1
4x=2-2
y=-1
x=0
3.
Pierwsza linijka mnożona przez 2
x-y=2x+2y+2
5+x+y=-x+y
x-2x=2y+2+y
5+x+y=-x+y
x=-3y+2
5-3y+2+y=3y-3+y
x=-3y+2
-4y=-1 /-4
x=-3y+2
y=1/4
x=-3/4+2
y=1/4
x=1 1/4
Zdjęcia z zadaniem 9.