y=-2x-1
x=y+7
x=-2x-1+7
3x=6 /:3
x=2
y=-4-1
y=-5
(x,y) należy do {2,-5}
∫y= -2x -1
∫x= y + 7
∫2x-y=-1/*(-1)
∫x-y=7
∫-2x+y=1
∫x-y=7 +
-----------
-x=8
x=-8
-8-y=7
-y=8+7
-y=15
y=-15
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
y=-2x-1
x=y+7
y=-2x-1
x=-2x-1+7
y=-2x-1
3x=6 /:3
y=-2x-1
x=2
y=-4-1
x=2
y=-5
x=2
(x,y) należy do {2,-5}
∫y= -2x -1
∫x= y + 7
∫2x-y=-1/*(-1)
∫x-y=7
∫-2x+y=1
∫x-y=7 +
-----------
-x=8
x=-8
-8-y=7
-y=8+7
-y=15
y=-15