Skip to main content
Solve for n
Tick mark Image
Solve for a_n
Tick mark Image

Similar Problems from Web Search

Share

a_{n}\left(3n+4\right)=4n-2
Variable n cannot be equal to -\frac{4}{3} since division by zero is not defined. Multiply both sides of the equation by 3n+4.
3a_{n}n+4a_{n}=4n-2
Use the distributive property to multiply a_{n} by 3n+4.
3a_{n}n+4a_{n}-4n=-2
Subtract 4n from both sides.
3a_{n}n-4n=-2-4a_{n}
Subtract 4a_{n} from both sides.
\left(3a_{n}-4\right)n=-2-4a_{n}
Combine all terms containing n.
\left(3a_{n}-4\right)n=-4a_{n}-2
The equation is in standard form.
\frac{\left(3a_{n}-4\right)n}{3a_{n}-4}=\frac{-4a_{n}-2}{3a_{n}-4}
Divide both sides by 3a_{n}-4.
n=\frac{-4a_{n}-2}{3a_{n}-4}
Dividing by 3a_{n}-4 undoes the multiplication by 3a_{n}-4.
n=-\frac{2\left(2a_{n}+1\right)}{3a_{n}-4}
Divide -2-4a_{n} by 3a_{n}-4.
n=-\frac{2\left(2a_{n}+1\right)}{3a_{n}-4}\text{, }n\neq -\frac{4}{3}
Variable n cannot be equal to -\frac{4}{3}.