" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
∫2y-5x=6
∫-x=-y+6|:(-1)
2y-5x=6
x=y-6
2y-5(y-6)=6
2y-5y+30=6
-3y=6-30
-3y=-24
y=8
x=y-6
x=8-6
x=2
b)
∫2x-5(y+1)=-5
∫-x+2(y+2)=4
2x-5y-5=-5
-x+2y+4=4
2x-5y=0
-x+2y=0|:(-1)
2x-5y=0
x=2y
2*2y-5y=0
4y-5y=0
-y=0
y=0
x=2*0
x=0
c)
∫2y-(3+y)=0
∫-x+y/2=2|*2
2y-3-y=0
-2x+y=4
y=3
-2x+3=4
-2x=4-3
-2x=1
x=-½
d)
∫3x+y=4
∫6x-(1-2y)=7
3x+y=4
6x-1+2y=7
3x+y=4
6x+2y=8|:2
3x+y=4
y=4-3x
3x+4-3x=4
0=0
brak rozwiązań
-x=-y+6 /*(-1)
2y-5x=6
x=y-6
2y-5(y-6)=6
2y-5y +30 =6
-3y = -24 /:(-3)
y= 8
-x=-y+6
-x= -8+6
-x= -2 /*(-1)
x=2
b)2x-5(y+1)=-5
-x+2(y+2)=4
2x- 5y -5 = -5
-x+2y+4 = 4
2x -5y=0
-x = -2y /*(-1)
2x -5y=0
x=2y
2*2y -5y=0
4y-5y=0
-y=0
y=0
x=2y
x=0
c)2y-(3+y)=0
-x+y/2=2
2y -3 - y=0
y= 3
-x+3/2 =2
-x =1/2
x= -1/2
d)3x+y=4
6x-(1-2y)=7
y= -3x+4
6x-1+2y=7
6x+2y=8
y= -3x+4
6x+2(-3x+4)=8
6x-6x+8=8
0=0
układ sprzeczny