Rozwiąż układ równań. (3 przykłady)
4(x-2)-3(y+1)=0
8=2(x-y)+x
4x-8-3y-3=0
8=2x-2y+x
4x-3y-11=0
3x-2y=8
4x= 3y+11 |:4
c)
-12 +2(x+y)=3(x-1)
6(x+y)=4(x-y-1)
-12+2x+2y=3x-3
6x+6y=4x-4y-4
2x-3x=12-3-2y
2x+10y=-4
-x=-2y-9
x=2y+9
2(2y+9) +10y = -4
4y+18 +10y=-4
14y=-22
y= -22/14
x=2 *(-22/14)+9
y=-22/14
x= -22/7 +9
x= -1 i 8/14 +9
y= -1 i 8/14
x=7 i 6/14
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
4(x-2)-3(y+1)=0
8=2(x-y)+x
4x-8-3y-3=0
8=2x-2y+x
4x-3y-11=0
3x-2y=8
4x= 3y+11 |:4
3x-2y=8
c)
-12 +2(x+y)=3(x-1)
6(x+y)=4(x-y-1)
-12+2x+2y=3x-3
6x+6y=4x-4y-4
2x-3x=12-3-2y
2x+10y=-4
-x=-2y-9
2x+10y=-4
x=2y+9
2(2y+9) +10y = -4
x=2y+9
4y+18 +10y=-4
x=2y+9
14y=-22
x=2y+9
y= -22/14
x=2 *(-22/14)+9
y=-22/14
y= -22/14
x= -22/7 +9
y=-22/14
x= -1 i 8/14 +9
y= -1 i 8/14
x=7 i 6/14