[tex]\boxed{\underline{\bf \: ANSWER}}[/tex]
[tex] \sf \: 6(2 - 3x) + 1 \\ = \sf \: 6 \times 2 - 6 \times 3x + 1 \\ \sf \: = 12 - 18x + 1 \\ = \sf \: 12 + 1 - 18x \\ = \boxed{ \bf \: 13 - 18x}[/tex]
Property used :-
Distributive property.
__________________
Hope it helps.
RainbowSalt2222