# Solve for b: R = 3a2b?

Is it R over 3a2 or 3a2 over R or 3a - R or R - 3a2

### 2 Answers

Relevance

- EvanLv 47 years agoFavorite Answer
R=3a^2b

Since b is on the right-hand side of the equation, switch the sides so it is on the left-hand side of the equation.

3a^2b=R

Divide each term in the equation by 3a^(2).

3a^2b/3a^2=R/3a^2

Simplify the left-hand side of the equation by canceling the common factors.

b=R/3a^2

- Login to reply the answers

- 7 years ago
R = 3a²b

=> To make b the subject of formula in the equation above, simply requires you to divide both sides by 3a², i.e.

R/3a² = 3a²b/3a²

=> By cancelling 3a² from both the numerator and denominator at the right hand side of the equation above, you'll have

R/3a² = b

Hence b = R/3a² ...Ans

Source(s): The websites listed below will be of a good help in letting you understand the change of subject of a formula - http://www.bbc.co.uk/schools/gcsebitesize/maths/al... http://www.mathsisfun.com/algebra/equation-formula... http://www.maths.com/algebra/change-the-subject-of... http://www.skoool.co.za/studynotes/maths/id230.htm- Login to reply the answers

Still have questions? Get your answers by asking now.