Реши уравнения: 35 + x = 61; x − 24 = 57; x + 16 = 75; 2 · x = 16.

1. \(35+x=61\)
   \(x=61-35=26\).
2. \(x-24=57\)
   \(x=57+24=81\).
3. \(x+16=75\)
   \(x=75-16=59\).
4. \(2\cdot x=16\)
   \(x=16:2=8\).

Ответ: x = 26; x = 81; x = 59; x = 8.