Question

Y = 3x; (2, 6)

Is this a solution or not?

Answer 1

Yes, this is a solution.

Because y = 3x

6 = 3 × 2

6 = 6

Answer 2

Yes. If you substitute 2 for x, 3x would equal 6. If you substitute y for 6, then you would get 6 = 6 which means that that is a solution to the equation