Ответ:

  1. x + 35 = 87; x = 87 − 35 = 52.
  2. x − 26 = 64; x = 64 + 26 = 90.
  3. 73 − x = 28; x = 73 − 28 = 45.
  4. x + 48 = 90; x = 90 − 48 = 42.
  5. x − 37 = 45; x = 45 + 37 = 82.
  6. 92 − x = 56; x = 92 − 56 = 36.

Ответ: 52; 90; 45; 42; 82; 36.