Question 976830

if {{{f(x) = -5x - 4}}} and {{{g(x) = 6x - 7}}}, than 

{{{f(x) + g(x)=(-5x - 4)+(6x - 7)}}}

{{{f(x) + g(x)=-5x - 4+6x - 7}}}

{{{f(x) + g(x)=(6x-5x) - (4+ 7)}}}

{{{f(x) + g(x)=x -11}}}