Solve each of the following for the indicated variable:
(a) P_{1} V_{1}=P_{2} V_{2}; solve for V_{2}
(b) \frac{V_{1}}{T_{1}}=\frac{V_{2}}{T_{2}}; solve for T_{1}
(c) P V=n R T; solve for n
(d) \mathrm{K}={ }^{\circ} \mathrm{C}+273; solve for { }^{\circ} \mathrm{C}
(e) \frac{3 x+7}{2}=y; solve for x
(f) \frac{32}{y+3}=8; solve for y
(a) V_{2}=\frac{P_{1} V_{1}}{P_{2}}
(b) T_{1}=\frac{V_{1} T_{2}}{V_{2}}
(c) n=\frac{P V}{R T}
(d) { }^{\circ} \mathrm{C}=\mathrm{K}-273
(e) x=\frac{2 y-7}{3}
(f) y=1