Solve for the variable d and write the steps nd=4g-fd

Question

Solve for d

Answer 1

nd = 4g - fd  <--- given

 

nd + fd = 4g <--- adds fd to both sides

 

d( n + f) = 4g <--- factors out the d

 

d = 4g/(n + f) <--- divides both sides by (n+f)

 

                  f must not equal to -n 

 

 

 

Answer 2

Group all d terms together.

 

nd + fd = 4g

 

 

Factor out d on the left side.

 

d(n + f) = 4g

 

 

Finally, divide both sides of the equation by (n  + f).

 

d = 4g / (n + f)