Răspuns :
[tex] - 3 \times x + 11 = - 1 \\ - 3 \times x = - 1 - 11 \\ - 3 \times x = - 12 \\ - x = - \frac{12}{3 } \\ - x = - 4 \\ x = 4[/tex]
[tex] - 3 \times x + 11 = - 1 \\ - 3 \times x = - 1 - 11 \\ - 3 \times x = - 12 \\ - x = - \frac{12}{3 } \\ - x = - 4 \\ x = 4[/tex]