[tex] - 3(2x - 9) = 3(16 - x) \\ \\ \longrightarrow \: - 6x + 27 = 48 - 3x \\ \\ \longrightarrow \: - 3x + 6x = 27 - 48 \\ \\ \longrightarrow \: 3x = 21 \\ \\ \: dividing \: both \: sides \: by \: 3 , \\ \\ \longrightarrow \: \frac{\cancel{3}x}{\cancel{3}} = \cancel{\frac{ -21}{3}} \\ \\ \longrightarrow \: \boxed{x = - 7}[/tex]
hope helpful :-;