Find the coefficient of x when (7+8x)-3(2+6x+2x^2)+8(1+3x+4x^2+12x^3)+9(7-x^2-8x^3+13x^4) is simplified.
I'll start....you finish
(7+8x)-3(2+6x+2x^2)+8(1+3x+4x^2+12x^3)+9(7-x^2-8x^3+13x^4)
8x - 18x + 24x = _______________
+204 
