Starting to learn latex and also need to some help: I am trying to solve the equation below:

$\displaystyle \frac{x}{7} - \frac{1}{2} = 1 - \frac{2x}{5}$

The only thing I can think to do is start multiplying out the $\displaystyle \frac{1}{2}$:

$\displaystyle 2\frac{x}{7} - = 2 x 1 - 2\frac{2x}{5}$

or to find a common denominator on the left:

$\displaystyle \frac{2x -7}{14} = 1 - \frac{2x}{5}$

Either way after these I am getting lost if anyone could point out the right direction to me would be great.

Thanks