Solutions:

1. x = 4 + 5 * 7 / 3 - 4;
   x = 4 + (5 * 7) / 3 - 4;
   x = 4 + (35 / 3) - 4;
   x = (4 + 11) - 4;
   x = 15 - 4;
   x = 11
   
   
2. x = 9 % 9 + 7 * 6 - 3 / 2;
   x = (9 % 9) + (7 * 6) - (3 / 2);
   x = (0 + 42) - 1;
   x = 42 - 1;
   x = 41
   
   
3. x = (3 * 2 * (2 + (6 * 10 / (3) ) ) );
   x = (3 * 2 * (2 + ( (6 * 10) / 3 ) ) );
   x = (3 * 2 * (2 + (60 / 3 ) ) );
   x = (3 * 2 * (2 + 20) );
   x = ( (3 * 2) * 22 );
   x = (6 * 22);
   x = 132