Using table inputs to check for solution to linear equation

My students are modeling linear functions from word problems. I have a table for them to enter an x and y value that would be a solution to the linear equation.There are multiple correct solutions. I would like the third column to give them a check mark if the solution they come up with is correct. For example, the equation is 30x+20y=180. x and y can only be positive integers. I need help setting this up.
Here is the link for what I am trying to do:

Try and see if this is what you are looking for.

Thank you for you help! That works.

could you please show me how to do the same thing for the equation y=250+132.5x?