Ответ:

  1. \(6m+3+4m-7=10m-4\).
  2. \(0.6a-0.2+0.3-0.6a=0.1\).
  3. \(-18n-6+12n+9=-6n+3\).
  4. \(1.8b-0.9-0.5b+1=1.3b+0.1\).
  5. \(3-7.5p+8-3.5p=11-11p\).
  6. \(-13+2.6c-c+8=1.6c-5\).
  7. \(2.8x-0.8-1.6+1.7x=4.5x-2.4\).
  8. \(1.2a-4+40-4.8a=36-3.6a\).
  9. \(10-7.5y-y+2.3=12.3-8.5y\).