Question

I need help pls
....

Answer 1

3

Explanation:

x=2,y=3,z=4

6x-3y

6x2-3x3

12-9

3

Answer 2

The answer is 3.

Explanation:

6x is 6 times 2, so 12.

3y is 3 times 3, so that's 9.

12-9=3.