1. The problem is to solve the equation $x - = $ for $x$. 2. Since the equation is incomplete, we assume it means $x - a = b$ where $a$ and $b$ are constants. 3. The formula to solve for $x$ is: $$x = b + a$$ 4. This is because adding $a$ to both sides cancels out the $-a$ on the left side. 5. Without specific values for $a$ and $b$, the solution remains in this general form. 6. Therefore, the solution is: $$x = b + a$$ This means $x$ equals the sum of the right side constant and the subtracted value on the left side.