Ответ:

  1. \(3(x+4)=18\) → \(x+4=6\) → \(x=2\).
  2. \(2(x-7)=18\) → \(x-7=9\) → \(x=16\).
  3. \(2(x+5)=30\) → \(x+5=15\) → \(x=10\).
  4. \(4(x-6)=64\) → \(x-6=16\) → \(x=22\).
  5. \(6(x+3)=96\) → \(x+3=16\) → \(x=13\).

Ответ: 2; 16; 10; 22; 13.