y-9x=0

Question

Pleasw explain the steps cleary

Answer 1

what steps?
If you want to solve for y, then you need to get it by itself. Remember that if an equation is true, it stays true if you do the same thing to both sides.

So, add 9x to both sides:

y - 9x + 9x = 0 + 9x
y = 9x

Not sure what else you want to do.

Answer 2

x^2-10x+250=0