" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x-y=3
-x+y=-2 +
⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
x=3-2 = 1
podstawiamy do drugiego równania wynik x
-1+y=-2
y=-2+1
y=-1
powracamy do klamerki
x=1
y=-1
-x +y = -2
-2x-3=y
-x-2x-3=-2
-2x-3=y
-3x=-5
-2x-3=y
x= 1,4
- 2* 1,4-3=y
x=1,4
y=-0,2
2x - y = 3
-x +y = -2
-y=3-2x / (-1)
-x+y=-2
y=-3+2x
-x-3+2x=-2
y=-3-2x
x=-2+3
y=-3-2x
x=1
y=-3-2*1
x=0
y=-1
x=1
Spr.
2x - y = 3
-x +y = -2
2*1-(-1)=2+1=3
-1+(-1)=-2