Question

subiectul intai c va rog dau coroana!!!

Answer 1

3x[3-3x(3x3:3-3)]=
3x[3-3x(9:3-3)]=
3x[3-3x(3-3)]=
3x(3-3x0)=
3x3=9

Answer 2

c) 3x[3-3x(3x3:3-3)]=
    3x[3-3x(9:3-3)]=
    3x[3-3x(3-3)]=
    3x(3-3x0)=
    3x(3-0)
    3x3=9