Решите уравнение 1. 8x = -8.8 2. 9t - 13 -4t = 17 3. 14 + 5x = 0 4. 5x - 3x = 22 + 14x 5. 7 - (x + 6) = 4 6. 0.8(x - 5) - 13 = 2x + 5