what is the coefficient of the simplified expression of -5n+3(6+7n)
\(\begin{array}{rcll} -5n+3(6+7n) &=& -5\cdot n+3\cdot 6 + 3\cdot 7 \cdot n \\ &=& -5\cdot n+18 + 21 \cdot n \\ &=& 21 \cdot n -5\cdot n+18 \\ &=& 16 \cdot n +18\\ &=& 18 + 16 \cdot n\\ \end{array}\)
