You may want to review arithmetic with fractions, simplifying expressions and the idea of equations first.
Solving an equation means working out what x needs to be in order for it to be right. This is one thing that teachers generally cover pretty carefully, so I won't say as much. Briefly, you want to turn your equation into another equation that says the same thing, but with x all by itself on one side and a number on the other side. For the sorts of equations you'll see at this point, here are the steps:
Remember, −x is the same thing as (−1)x. So, for the last step, if you have −x on one side, you can divide both sides by −1.
Fractions are just a kind of number. So if there are fractions anywhere in the equation, you just need to treat them like any other number. (This means you need to remember how to do arithmetic with fractions.)
One funny thing that can happen is that the x can disappear (or never have been there to begin with). In that case, the equation is either right (no matter what x is) or wrong (no matter what x is). If the equation is always right, then we call it an identity. If it's always wrong, then we call it a contradiction. Otherwise (that is, if there's a single number that x has to be), we call it a conditional equation.