Since the power of 2 is even, the result will be positive.
\[-{3}^{2}+\frac{6}{-3}\times 16-21+7\]
Simplify \({3}^{2}\) to \(9\).
\[-9+\frac{6}{-3}\times 16-21+7\]
Move the negative sign to the left.
\[-9-\frac{6}{3}\times 16-21+7\]
Simplify \(\frac{6}{3}\) to \(2\).
\[-9-2\times 16-21+7\]
Simplify \(2\times 16\) to \(32\).
\[-9-32-21+7\]
Simplify \(-9-32\) to \(-41\).
\[-41-21+7\]
Simplify \(-41-21\) to \(-62\).
\[-62+7\]
Simplify.
\[-55\]
-55
