Номер 358

1) 2408 - x = 957;    
x = 2408 - 957;
x = 1451.

2) x - 5450 = 9758;
x = 9758 + 5450;
x = 15 208.

3) 10 - x > 5;
x < 10 - 5;
x < 5.