Explore the solution space of an equation? Lets say I have a equation:
$x = \frac{A}{B} \times k$
and I want to know all values that satisfy the constraint where $x = 1$, and the limits of $A$, $B$ and $k$ are$-10$ to $10$. How would I go about doing this?
Note: the variables are real numbers

You can rewrite your equation as $B=kA$, in which $k,A,B \in [-10,10]$. Here, the only non-obvious constraint is that $\vert k \vert \cdot \vert A \vert \leq 10$.  Our solution set then looks like
$$\{(k,A,B)\}=\{(k,A,kA): \vert k \vert \leq 10,\, \vert A \vert \leq 10,\,\vert k \vert \cdot \vert A \vert \leq 10\}.$$ 
Geometrically, the boundary of admissable triples pairs $(k,A)$ looks like the union of the solution sets of  $xy=\pm 10$.
