What is 9f 16g-15f-30g?

The expression ( 9f + 16g - 15f - 30g ) can be simplified by combining like terms. Combining the ( f ) terms: ( 9f - 15f = -6f ), and the ( g ) terms: ( 16g - 30g = -14g ). Thus, the simplified expression is ( -6f - 14g ).