Question

I need help please.

Answer 1

7

Explanation:

substitute the variables

`(9^(2)-3(6) )/(9)`

`(81-18)/(9)`

`(63)/(9)`

= 7

Answer 2

7

Explanation:

Replace the variations with given values: z = 9 and y = 6

`\frac{ {z}^(2) - 3y }{z} \\ \frac{ {9}^(2) - 3 * 6 }{9} = \frac{81 - 18} {9} \\ (63)/(9) = 7`