$\"\"$

The expression is $\"\"$ .

$\"\"$ (Substitute a = 5, b = – 7 and c = – 16)

Additive inverse of – 7 is 7. To subtract 7, add – 7.

$\"\"$

$\"\"$ (Add: $\"\"$ ) $\"\"$

Additive inverse of – 16 is 16. To subtract – 16, add 16.

$\"\"$

$\"\"$ (Add: $\"\"$ ) $\"\"$

The simplified expression is 14.