Question 1006592
{{{k(a-b)=a+b}}}
{{{ka-kb=a+b}}}----Distributive Property
{{{ka-a-kb=b}}}----Isolating a
{{{ka-a=b+kb}}}
{{{a(k-1)=b+kb}}}-----Combine like-terms
{{{highlight(a=(b+kb)/(k-1))}}}