what is
[tex] - 9(x + 3) = - 3(x + 3)[/tex]

[tex]Answer: \\ - 9(x - 3) = - 3(x + 3) \\ \Leftrightarrow 3(x - 3) = x + 3 \\ \Leftrightarrow 3x - 9 - x = 3 \\ \Leftrightarrow 2x = 3 + 9 \\ \Leftrightarrow 2x = 12 \\ \Leftrightarrow x = 6[/tex]