rozwiaz uklad rownan (x+y=1 (5x-y=1 i sprawdz rozwiazanie
{x+y=1
{5x-y=1
---
{y=1-x
{5x-(1-x)=1
{5x-1+x=1
{6x=2 |:6
{x=1/3
{y=1-1/3
{y=2/3
Sprawdzenie:
x+y=1
1/3 + 2/3=1
3/3=1
1=1
5x-y=1
5* 1/3 - 2/3=1
5/3 - 2/3=1
5x-y=1 dodajemy stronami
6x=2
x=2/6
x=1/3
1/3+y=1
y=1-1/3
y=2/3
spr
1/3+2/3=1 L=P
5*1/3-2/3=5/3-2/3=3/3=1 L=P
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{x+y=1
{5x-y=1
---
{y=1-x
{5x-(1-x)=1
---
{y=1-x
{5x-1+x=1
---
{y=1-x
{6x=2 |:6
---
{y=1-x
{x=1/3
---
{y=1-1/3
{x=1/3
---
{y=2/3
{x=1/3
---
Sprawdzenie:
x+y=1
1/3 + 2/3=1
3/3=1
1=1
---
5x-y=1
5* 1/3 - 2/3=1
5/3 - 2/3=1
3/3=1
1=1
x+y=1
5x-y=1 dodajemy stronami
6x=2
x=2/6
x=1/3
1/3+y=1
y=1-1/3
y=2/3
spr
1/3+2/3=1 L=P
5*1/3-2/3=5/3-2/3=3/3=1 L=P