Question

Solve for x
3 1
- - - =1
5x 2x

Answer 1

Do you know how to make the denominator 10x?
multiply the first fraction by 2/2
mult the 2nd fraction by 5/5
now you can subtract the tops

Answer 2

\[ \frac{2}{2}\cdot\frac{3}{5x} -\frac{5}{5}\cdot\frac{1}{2x} \]
\[ \frac{6}{10x} -\frac{5}{10x} \]
\[ \frac{6-5}{10x} = \frac{1}{10x} \]