Ta có :
`+)`
`(2bc-2016)/(3c-2bc+2016)=(3c-2bc+2016-3c)/(3c-2bc+2016)=-1+(3c)/(3c-2bc+2016)`
`+)`
`(-2b)/(3-2b+ab)=(-2bc)/(3c-2bc+abc)=(-2bc)/(3c-2bc+2016)`
`+)`
`(4032-3ac)/(3ac-4032+2016a)=(3ac-2abc+2016a+2016a)/(3ac-2abc+2016a)=-1+2016/(3a-2bc+2016)`
`to P=-1+(3c)/(3c-2bc+2016)+(-2bc)/(3c-2bc+2016)-1+2016/(3a-2bc+2016)`
`to P=-2+(3c-2bc+2016)/(3a-2bc+2016)`
`to P=-2+1=-1`