Rozwiąż równania:
7x-2y=0
6x-2y=0
oraz:
2x=3y=10
x+5y=5
Potrzebne do dzis.. :) Za dobrze rozwiązane daje najlep.
6x-2y=0 /* (-1)
7x-2y= 0
-6x +2y = 0
7x -2y -6x +2y= 0
x= 0
7*0 - 2y= 0
0 -2y= 0
-2y= 0/:(-2)
y= 0
Układ nieoznaczony
2x-3y=10
2x -3y = 10
x+ 5y = 5 /*(-2)
2x -3y= 10
-2x -10y= -10
2x-3y -2x -10y= 10-10
-13y= 0 /:(-13)
2x -3y =10
2x -3*0 = 10
2x = 10 /:2
x= 5
6x-2y=0/:2
{7x-2y=0
{3x-y=0
[3x=y
{7x-2·3x=0
{3x=y
{7x-6x=0
{x=0
[y=3·0=0
{x=5-5y
{2x+3y=10
[2(5-5y)+3y=10
10-10y+3y=10
[-4y=0
[y=0
{x=5-5·0=5
{y=0
[x=5
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7x-2y=0
6x-2y=0 /* (-1)
7x-2y= 0
-6x +2y = 0
7x -2y -6x +2y= 0
x= 0
7x-2y= 0
7*0 - 2y= 0
0 -2y= 0
-2y= 0/:(-2)
y= 0
Układ nieoznaczony
2x-3y=10
x+5y=5
2x -3y = 10
x+ 5y = 5 /*(-2)
2x -3y= 10
-2x -10y= -10
2x-3y -2x -10y= 10-10
-13y= 0 /:(-13)
y= 0
2x -3y =10
2x -3*0 = 10
2x = 10 /:2
x= 5
7x-2y=0
6x-2y=0/:2
{7x-2y=0
{3x-y=0
[3x=y
{7x-2·3x=0
{3x=y
{7x-6x=0
[3x=y
{x=0
[y=3·0=0
2x=3y=10
x+5y=5
{x=5-5y
{2x+3y=10
{x=5-5y
[2(5-5y)+3y=10
10-10y+3y=10
{x=5-5y
[-4y=0
[y=0
{x=5-5·0=5
{y=0
[x=5