Question

I’m having trouble with this

Answer 1

Fast answer:
(x, y, z) = (3, 2, 1)
*x = 3; y = 2; z = 1.

Check point:
2*3 - 2 + 3*1 = 7
3*3 + 2 - 1 = 10
5*3 - 2*1 = 13

7=7
10=10
13=13