7z/4+5x if z=8 and x=3 PLEASE HELP THIS IS DUE IN 20 MINS.

29

Step-by-step explanation:

7(8)/4+5(3)

56/4+15

14+15

29

The first thing you do is substitute 9 for y in the function, which is,

9 - 4 = 5/6 (x - 2)

Then, you subtract on the left side

5 = 5/6 (x - 2)

Then, you multiply by 6 on both sides

30 = 5 (x - 2)

Then, divide both sides by 5

6 = x - 2

Then, at 2 on both sides to isolate x
& your final answer is

x = 8 (this would be the missing value)