Реши уравнения: 34: (18-x) * 4-56=12 (560:x+30) : 5+25=45

1) 34 : (18 - x) * 4 - 56 = 12;

34 : (18 - x) * 4 = 12 + 56;

34 : (18 - x) * 4 = 68;

34 : (18 - x) = 68 : 4;

34 : (18 - x) = 17;

18 - х = 34 : 17;

18 - х = 2;

х = 18 - 2;

х = 16.

2) (560 : x + 30) : 5 + 25 = 45;

(560 : x + 30) : 5 = 45 - 25;

(560 : x + 30) : 5 = 20;

560 : x + 30 = 20 * 5;

560 : x + 30 = 100;

560 : x = 100 - 30;

560 : x = 70;

х = 560 : 70;

х = 8.