Final answer:
Without specific context or clear equations, it is challenging to provide definitive values for the variables x, y, and z. More information is needed to solve the problem accurately.
Step-by-step explanation:
Understanding the variables x, y, and z in mathematical problems often involves identifying equations or systems of equations in which they occur.
From the information provided, it seems like we have a mix of individual equations and values for x, y, and z, along with some information about vector addition and coordinate system projection. However, without a specific context or a clear system of equations, it's challenging to provide specific values for x, y, and z. A step in solving such problems is usually setting up equations based on given information like angles in a geometry problem or vector components in a physics problem.
The information seems disjointed, and unfortunately, the question lacks the clarity needed for a precise solution. If you could provide more information on the equations or relationships between x, y, and z, or the context of the problem, a more definitive answer could be given.