Question

2(3-6c)-9(2+3c)+3(13c-4)=

Answer 1

2(3-6с)-9(2+3c)+3(13c-4)=
1) 2(3-6c)=6-12c
2) -9(2+3c)= -18-27c
3) 3(13c-4)=39c-12
4) 6-12c-18-27c+39c-12= 6-18-12= -24

Answer 2

спс