ROZWIĄŻ METODĄ POSTAWIANIA, (układy równań):
1. 5x+3y=0
1,5x+y=2
2. x/2 - y/3=1 /*6
x/2 + 2y/3=4 /*6
PILNE.!
|5x+3y=0
|y=2-1,5x*
5x+3(2-1,5x)=0
5x+6-4,5x=0
0,5x=-6|:0,5
x=-12
|x=-12
|y=2-(-18)
|y=20
___________________
|x/2-y/3=1/6|*6|x/2+2y/3=4/6|*6|3x-2y=1|3x+4y=4|3x=1+2y*|1+2y+4y=46y=4-16y=3|:6y=1/2|3x=1+1|y=1/2|3x=2|:3|y=1/2|x=2/3|y=1/2
y =2-1,5x
0,5x=-6 /:0,5
y=2-1,5*(-12)
y=2+18
y=20
3x-2y=6
3x+4y=24
x=2+2/3y
3(2+2/3y)+4y=24
6+2y+4y=24
6y=18 /:6
y=3
x=2+2
x=4
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|5x+3y=0
|y=2-1,5x*
5x+3(2-1,5x)=0
5x+6-4,5x=0
0,5x=-6|:0,5
x=-12
|x=-12
|y=2-(-18)
|x=-12
|y=20
___________________
|x/2-y/3=1/6|*6
|x/2+2y/3=4/6|*6
|3x-2y=1
|3x+4y=4
|3x=1+2y*
|1+2y+4y=4
6y=4-1
6y=3|:6
y=1/2
|3x=1+1
|y=1/2
|3x=2|:3
|y=1/2
|x=2/3
|y=1/2
1. 5x+3y=0
y =2-1,5x
5x+3(2-1,5x)=0
y =2-1,5x
5x+6-4,5x=0
y =2-1,5x
0,5x=-6 /:0,5
x=-12
y=2-1,5*(-12)
y=2+18
y=20
x=-12
y=20
2. x/2 - y/3=1 /*6
x/2 + 2y/3=4 /*6
3x-2y=6
3x+4y=24
x=2+2/3y
3(2+2/3y)+4y=24
x=2+2/3y
6+2y+4y=24
6y=18 /:6
y=3
x=2+2
x=4
y=3
x=4