Answer:
a = 1
Step-by-step explanation:
Given the point (a, 3) is on the line: 5x + y = 8.
Any point on the line satisfies the equation.
So, (a, 3) should satisfy the equation 5x + y = 8
Substituting x = a and y = 3, we get:
5(a) + 3 = 8
![$ \implies 5a = 5 $](https://tex.z-dn.net/?f=%24%20%5Cimplies%205a%20%3D%205%20%24)
⇒ a = 1
Therefore, (1, 3) is the point on the line.