What is y when x = 40

The equation is on y and x. We need to prove X+Y=100

Step-by-step explanation:

If the value of X=40,

Then value of Y could be 100-40 because the total count is 100.

Y=60.

Verification done by the given equation.

X+Y=100

Y=100-X

Y=100-40

Y=60

Therefore the value of the Y is 60