Hej mam do was prozbe zrobil by mi to ktos to Daje najjjjj Na jutro PLs

3.B 5.  a) 11a - (4a+5) +(4-a)= 11a-4a-5+28-7a=23 b) 6(x-y)-8y-7(x-y)+x= 6x-6y-7y+7x+x= 14x-21 7.  a)2(2x+4y-3z) b) x(k-7-m) c) 3x(-3y +yz -4z)