Ответ:

  1. \((2{,}3-0{,}7+3{,}6)a-1=5{,}2a-1\).

  2. \((0{,}48+0{,}52-3{,}7)b+3=-2{,}7b+3\).

  3. \((\frac13+\frac12)x-(\frac16+\frac56)a+2=\frac56x-a+2\).

  4. \((\frac56-\frac16)y+(-\frac13+\frac23)b-3=\frac23y+\frac13b-3\).

  5. \((2{,}1-3{,}2+1{,}1)m+(1+2-1)n=2n\).

  6. \((5{,}7+0{,}3-1)p+(-2{,}7+0{,}8+1{,}9)q=5p\).