PDF chapter test TRY NOW

Remove the brackets and write an equivalent expression.
 
(a) 40 \(-(\)24 \(-\) 9\()\) \(=\)
 
(b) \((\)11 \(+\) 4\()\) \(\times\) 8 \(=\)
 
(c) \((\)87 \(\div 3) + (\)13 \(-\) 7\()\) \(=\)