## SAT Math Tutorial

*solving literal equations*

#### Intro

The key to solving this problem is to isolate the variable on one side and then solve.

#### Sample Problem

R = F/N+F

SOLVE FOR F.

#### Solution

step 1: multiply both sides by N+F

(N+F) R = F/N +F * N+F

step 2: Subtract RF from both sides

RN + RF = F

– RF -RF

______________________

step 3: Key step** factor out the variable

RN = F – RF

RN = (1 – R)F

step 4: isolate and solve for the variable by dividing by (1-R) on both sides

FINAL ANSWER

RN /(1-R) = F

# About The Author

Math & ChemistryTutor For High School And Universi |

I have a Master\'s degree in mathematics and a Bachelor\'s degree in Biology. I am a state certified teacher with over 8 years of experience teaching at the secondary and college levels. In a Collegiate Scholars Program, I taught Algebra and Chemistry to gifted high school students. My approach to t... |