Question 146615
{{{f(x) = -x-5}}} Start with the given function



{{{f(a - 1)= -(a - 1)-5}}} Replace each x with {{{a - 1}}}



{{{f(a - 1)= -a + 1-5}}} Distribute



{{{f(a - 1)= -a -4}}} Combine like terms