what is the missing value?

Answer:
I believe that the missing value is 5, y=5
Step-by-step explanation:
1st since you can see in the ordered pair that 8 is in the x place that means 8 is the x value so what you can do is rewrite the equation to look like this: 5(8)-2y=30
2nd solve for y
5(8)-2y=30
40-2y=30
-40. -40 -subtract 40 on both side
-2y=-10
÷-2. ÷-2 -divide -2 on both sides
y=5
The missing value is 5.
Step-by-step explanation:
Given,
5x-2y = 30
And x = 8 ( as per the solution)
To find the value of y
Putting x=8 in the given equation we get,
5×8 - 2y = 30
or, 40-30 = 2y
or, 2y = 10
or, y = 10÷2
or, y = 5
Hence,
The solution will be (8,5)