РАЗМИНКА (ЛЕГКИЙ УРОВЕНЬ)

Разминка (легкий уровень)

1. \(3x = -9\)
   \(x = \frac{-9}{3}\)
   \(x = -3\)
2. \(-2,5x = -13\)
   \(x = \frac{-13}{-2,5}\)
   \(x = 5,2\)
3. \(-4x = 14 - 2x\)
   \(-4x + 2x = 14\)
   \(-2x = 14\)
   \(x = \frac{14}{-2}\)
   \(x = -7\)
4. \(15 - 6x = 6\)
   \(-6x = 6 - 15\)
   \(-6x = -9\)
   \(x = \frac{-9}{-6}\)
   \(x = 1,5\)
5. \(-8x + 15 = 3,2x - 13\)
   \(15 + 13 = 3,2x + 8x\)
   \(28 = 11,2x\)
   \(x = \frac{28}{11,2}\)
   \(x = 2,5\)

Ответ: -3; 5,2; -7; 1,5; 2,5.