x- y =8 x+y =6 2x +y =6 x+y =6 3(x+y)=6 2(x+y)=2 1/2x+y=4 x+2y=6
to chyba są układy równań
x - y = 8
x + y = 6
--------------
2x = 14
x = 7
7 - y = 8
y = -1
2x + y = 6
x = 0
0 + y = 6
y = 6
3x + 3y = 6
2x + y = 2 => y = 2 - 2x
3x + 3(2-2x) = 6
3x + 6 - 6x = 6
-3x = 0
y = 2 - 2*0
y = 2
0,5x + y = 4
x + 2y = 6 => x = 6 - 2y
0,5(6 - 2y) + y = 4
3 - y + y = 4
3 = 4
układ sprzeczny
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Pozdrawiam :)
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to chyba są układy równań
x - y = 8
x + y = 6
--------------
2x = 14
x = 7
x - y = 8
7 - y = 8
y = -1
2x + y = 6
x + y = 6
--------------
x = 0
0 + y = 6
y = 6
3x + 3y = 6
2x + y = 2 => y = 2 - 2x
3x + 3(2-2x) = 6
3x + 6 - 6x = 6
-3x = 0
x = 0
y = 2 - 2*0
y = 2
0,5x + y = 4
x + 2y = 6 => x = 6 - 2y
0,5(6 - 2y) + y = 4
3 - y + y = 4
3 = 4
układ sprzeczny
----------------------------------------------------------------------------------------------------------
Feci, quod potui, faciant meliora potentes
Pozdrawiam :)