
1) Let's solve this system. We can start by rewriting it this way:

Let's pick the 3rd equation and isolate x, from it:

2) Now, we can plug that into the first and the 2nd equation.
Now let's solve this system to find y

Now, let's find y based on y=-z+2 plug into that z=3

2.2) And finally, let's find x

Hence, the answer is:
