Remove the brackets and write an equivalent expression.
 
(a) 53 \(-(\)22 \(-\) 7\()\) \(=\)
 
(b) \((\)9 \(+\) 3\()\) \(\times\) 11 \(=\)
 
(c) \((\)84 \(\div 3) + (\)16 \(-\) 6\()\) \(=\)