Question

21 = cd + e for d solve the equation for the indicated variable

Answer 1

$21 = cd + e$ 

$21 = cd + e:d$  $|Solve \ for \ d|$ 

$21-e=cd$  $|Subtract \ e \ from \ both \ sides|$ 

$\dfrac{21-e}{c}=d$ $|Divide \ both \ sides \ by \ c|$ 

$\dfrac{21-e}{c}=d$