4,5b-5c-(5,5b+5c)=
Решите срочно!!!
4,5b-5c-(5,5b+5c)=4.5b-5c-5.5b-5c=-b-10c=-(b+10c)
4,5b - 5c - (5,5b + 5c) = 4,5b - 5c - 5,5b - 5c = -b-10c