Solve S = 3f - 12 for f.

Question

Solve S = 3f - 12 for f.

Choose one answer.

A. f = S+3/12
 

B. f = s+12/3
 

C. f = S + 12
 

D. f = S - 12

Answer 1

S = 3f - 12

 

To "solve" for f means to get the f by itself on one side of the equation.  Start by adding 12 to both sides of the equation:

 

S + 12 = 3f

 

Divide both sides of the equation by 3:

 

S/3 + 4 = f