A)-15-2x = -27 e) -7y + 14 = 28 ж) 4. (x + (-6)) = 20 3) y + 8y = -72

1. д) -15 - 2x = -27

   -2x = -27 + 15

   -2x = -12

   x = -12 : (-2)

   x = 6

2. e) -7y + 14 = 28

   -7y = 28 - 14

   -7y = 14

   y = 14 : (-7)

   y = -2

3. ж) 4 * (x + (-6)) = 20

   4 * (x - 6) = 20

   x - 6 = 20 : 4

   x - 6 = 5

   x = 5 + 6

   x = 11

4. з) y + 8y = -72

   9y = -72

   y = -72 : 9

   y = -8

Ответ: д) x = 6; е) y = -2; ж) x = 11; з) y = -8.