Question

If the point (a,3) lies on the graph of the equation 5x + y = 8 then a =?

Answer 1

a = 1

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 $`

⇒ a = 1

Therefore, (1, 3) is the point on the line.