Add a negative sign to each term in parentheses; so it becomes -9x--3 which is -9x+3. Look for a common factor; both 9 and 3 are divisible by 3. So it becomes -3(3x-1). Hope this helps somebody.

If you solve the equation -(9x-3) = -9x+3

So to simplify this equation and to prevent you from making mistake, you can simplify the answer of the equation. So the answer will be:

-9x+3 = -3(3x-1)

When simplifying this expresion, remember that the negative in front is really a -1. So you need to distribute the -1 to each term.

-(9x - 3)

-1(9x - 3)

(-1)(9x) - (-1)(3)

Then multiply each term to simplify. I hope this helps!