A(b-3a)*2/(3a*2-ab)-3a= a(b-3a)*2/-a(b-3a)-3a=-(b-3a)-3a=-b-3a-3a=-b-6a -b-6a a=2.18 b=-5.6 5.6-6*2.18=5.6-13.08=-7.48
A(b-3a)²/-a(b-3a) -3a=-(b-3a)-3a=-b+3a-3a=-b