Rozwiąż metodą podstawiania:
3x+y=4
6x-(1-2y)=8
3x+y = 4
6x-(1-2y) = 8
y = 4-3x
6x-1+2y = 8
6x-1+2*(4-3x) = 8
6x-1+8-6x = 8
6x-6x = 8+1-8
0 = 1
Układ sprzeczny
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3x+y = 4
6x-(1-2y) = 8
y = 4-3x
6x-1+2y = 8
y = 4-3x
6x-1+2*(4-3x) = 8
y = 4-3x
6x-1+8-6x = 8
y = 4-3x
6x-6x = 8+1-8
y = 4-3x
0 = 1
Układ sprzeczny