a)
[tex]6x - 4( \frac{1}{2} x + 2) = 2(2x + 1) \\ 6x - 2x - 8 = 4x + 2 \\ 0 = 10[/tex]
Równanie sprzeczne
b)
[tex]6x - 4( \frac{1}{2} x + 2) = 2(2x - 4) \\ 6x - 2x - 8 = 4x - 8 \\ 0 = 0[/tex]
c)
[tex]6x - 4( \frac{1}{2} x + 2) = 2( - 2x - 4) \\ 6x - 2x - 8 = - 4x - 8 \\ 8x = 0 | \div 8 \\ x = 0[/tex]
Sprawdzenie
[tex]6 \times 0 - 4( \frac{1}{2} \times 0 + 2) = 2( - 2 \times 0 - 4) \\ 0 - 4 \times 2 = 2 \times - 4 \\ - 8 = - 8 \\ L = P[/tex]
