## Precalculus: Mathematics for Calculus, 7th Edition

$R = \frac{PV}{nT}$
$Solve$ $the$ $equation$ $for$ $the$ $indicated$ $variable:$ $PV = nRT;$ $for$ $R$ Solve for R Divide both sides by $nT$ $\frac{PV}{nT} = \frac{nRT}{nT}$ $\frac{PV}{nT} = R$ $R = \frac{PV}{nT}$