solving literal equations

SAT Math Tutorial

solving literal equations


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

Sample Problem

R = F/N+F


F = N / 1 – R

F = RN / R – 1

F = RN / 1 – R

F = N / R – 1


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


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...
Send Email
42 Subjects
KnowRo Tutor
1 Tutorial
Greenacres, FL

Suggested Tutors for SAT Math Help


Varsity Tutors

(855) 475-5132 - Award-Winning Academic & Test Prep Tutors


Study Wizards

(408) 883-8660 5-Star Yelp and Google in-home tutoring

Lance L

Frederick, MD

Math, Chemistry And Physics Tutor

Lance L

Frederick, MD

Math, Chemistry And Physics Tutor

Leave a Comment

Your email address will not be published. Required fields are marked *