Answer:
5
Step-by-step explanation:
We are given an x coordinate of the solution, so we can substitute 8 in for x
5x-2y=30
5(8)-2y=30
Multiply 5 and 8
40-2y=30
To solve, we need to get y by itself. First, move all the numbers to the same side of the equation
To do this, subtract 40 from both sides
40-40-2y=30-40
-2y= -10
y is still not by itself, it is being multiplied by -2 . To undo this, divide both sides by -2
-2y/-2= -10/-2
y=5
So, the missing value is 5
Answer:
The answer to this question is [tex]5[/tex].
Step-by-step explanation:
Here [tex](8, \_ )[/tex] means the values of [tex](x,y)[/tex].
[tex]\Rightarrow x = 5[/tex] and we have to find the value of [tex]y[/tex].
Putting the value [tex]x =5[/tex] in the equation [tex]5x-2y = 30[/tex]
[tex]\Rightarrow 5\times x - 2 \times y = 30\\\Rightarrow 5 \times 8 - 2 \times y =30\\\Rightarrow 2 \times y = 40-30\\\Rightarrow 2 \times y = 10\\\Rightarrow y = 5[/tex]
Hence the answer is [tex](8,5)[/tex].
