x-3+x-2=-3解得x=1
3(5x-4)=4x+10-3x+6解得x=2
1=-(1-x)-3(x-2)解得x=2
x=2(x-3)+m解得x=6-m,因为x-3≠0;3-x≠0,x≠3,所以m∈R且m≠3