Odpowiedź :
[tex]2x + 1 = - 1 \\ 2x = - 2 | \div 2 \\ x = - 1[/tex]
Sprawdzenie
[tex]2( - 1) + 1 = - 1 \\ - 2 + 1 = - 1 \\ L = P[/tex]
[tex]\boxed {x = -1}[/tex]
[tex]2x + 1 = - 1 \\ 2x = - 2 | \div 2 \\ x = - 1[/tex]
Sprawdzenie
[tex]2( - 1) + 1 = - 1 \\ - 2 + 1 = - 1 \\ L = P[/tex]
[tex]\boxed {x = -1}[/tex]