The solution for x in the equation v = -1xu is x = -v / u. This means that x depends on the values of both v and u.
Isolate x in the first equation: Divide both sides by -u:
x = -v/u
Substitute this expression for x in the second equation:
w =

Simplify the equation:
w =

Therefore, x is solved for in terms of u, v, and w as:
x = -v/u
Note: This solution assumes that u is not equal to zero, as dividing by zero is undefined.