Odpowiedź:
[tex]1)3x - 11 = 25 \\ 3x = 25 + 11 \\ 3x = 36 \\ x = 12[/tex]
[tex]2) - x - 8 = - 3 \\ - x = - 3 + 8 \\ - x = 5 \\ x = - 5[/tex]
[tex]3)6(x + 4) = 5x + 1 + x \\ 6x + 24 =6x + 1 \\ 6x - 6x = 1 - 24 \\ 0 = - 23[/tex]
brak rozwiązań
[tex]4) - 2(5x + 2) = 3 - 9x \\ - 10x - 4 = 3 - 9x \\ - 10x + 9x = 3 + 4 \\ - x = 7 \\ x = - 7[/tex]
[tex]5) \frac{y}{2} + \frac{1}{3} = \frac{7}{6} \\ 3y + 2 = 7 \\ 3y = 7 - 2 \\ 3y = 5 \\ y = \frac{5}{3} = 1 \frac{2}{3} [/tex]
