(a) \((–7)+(–9)+4+16\)
\(= -7-9+4+16\)
\(= -16+20\)
\(= 4\)
(b) \((37)+(–2)+(–65)+(–8)\)
\(= 37-2-65-8\)
\(= 37-75\)
\(= -38\)
Complete the drawing shown in Fig. 9.14 to indicate where the free ends of the two wires should be joined to make the bulb glow