Решить уравнения 11 * (560:x-5) = 23 (3 * a+160) : 10=28 800: (a*9+8) = 10

Решение уравнений

11 * (560:x-5) = 23

6160/x - 55 = 23

6160/x = 23+55 = 78

6160=78x

x=3080/39

(3 * a+160) : 10=28

3a+160/10=28

3a+160=280

3a=280-160=120

a=120/3=40

800: (a*9+8) = 10

800/9a+8=10

800=10 (9a+8)

80=9a+8

-9a=8-80=-72

a=-72/-9=8