Question 515169
If a ≠ 0 and the sum of x and 1/a is 0, then we know that {{{x+1/a=0}}}



Solving for x, we get {{{x=-1/a}}}



Solving for 'a', we get {{{1/a=-x}}} ----> {{{1=-ax}}} ----> {{{a=-1/x}}}