When simplifying the expression, 3x+22−(−6x+9) what is the coefficient of x after the final step?

When simplifying the expression, we must first distribute the negative sign to the terms inside the parentheses: 3x + 22 + 6x - 9.

Next, we combine like terms by adding the x-terms together: 3x + 6x = 9x.

The constant terms can also be combined: 22 - 9 = 13.

Thus, the simplified expression is 9x + 13.

The coefficient of x after the final step is 9.