x=8
y=-2
Z=3
Step-by-step explanation
Step 1
Let

Step 2
isolate x from equation (1) , (2) and (3)


Step 3
combining equation (4) and (5)

Step 4

Step 5
using equation(7) and (8) find y and z

replace the value of z= 3 in equation (7) to find y

finally, replace the value of y in equation (3) to find x

I hope this helps you