What is y-2x=x in math?

Question

Constant of Proportionality

Answer 1

The first thing you want to do here is add 2x to both sides of the equation in order to simplify!

y = x + 2x

y = 3x

since this is a direct proportional relationship then the constant of proportionality is just going to be the coefficient on the "x" term, meaning that k = 3 in this scenario

Answer 2

If you solve for y you get that y=3x. So the constant of proportionality equals 3.