Solve the equation- 5y -9 = -(y - 1)

This question is out of context. I'm going to assume you're using this equation template:

ax^2 + bx + c = 0

If so, get the equation into that form

-2x = -3x^2 + 11

Typically, they'll want the leading term to be positive

To do this, add 3x^2 to each side and subtract 11 from each side to get this

3x^2 - 2x - 11 = 0

Therefore,

a = 3

b = -2

c = -11