Rozwiąż równania: 1. 9m - 2m + 6 = 27 2. - 13 + 27 = -n + 19 +2n 3. 3x + 5 = 2x + 12 4. 4x - 6 = x + 9 5. 5n + 12 = 9n - 16 6. 5x - x +6 = -4 + 2x - 8x

9m - 2m + 6 = 27 7m=21 m=3 - 13 + 27 = -n + 19 +2n 14=n+19 n=5 3x + 5 = 2x + 12 x=7 4x - 6 = x + 9 3x=15 x=5 5n + 12 = 9n - 16 -4n=-28 n=7 5x - x +6 = -4 + 2x - 8x 4x+6=-4-6x 10x=-10 x=-1