Hi. There are different methods, for solving this system. Are you taking a math class? If so, what methods have you already seen, for solving systems of equations?
One approach is to reduce the system to two equations with x and y. We could do that by first solving the third equation for z, followed by substituting the result for z in each of the first two equations. This new system will have the same x and y solutions as the given system. Once you know x, the third equation can be used to find z.
Give it a try! Show us the two new equations that you get. Then, we can make suggestions on how to solve that new system for x and y.
Or, you could start by following Denis' suggestion, and we will continue from there.
If you have not studied or worked these types of exercises before, let us know. We can search for some lessons on-line. Cheers :cool:
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