Question 42284
{{{(3z/z)+((1-2)/(z-1))=0}}}  The z in the first fraction can cancel out
{{{3+((1-2)/(z-1))=0}}}  Subtract 3 from both sides to get z on one side
{{{(1-2)/(z-1)=-3}}}  Mutiply both sides by {{{(z-1)/1}}} to get rid of the fraction
{{{1-2=-3(z-1)}}}  Simplify
{{{-1=-3z+3}}}  Subtract 3 from both sides to get z by itself
{{{-4=-3z}}}  Divide by a -3
{{{-4/-3=z}}}  Simplify
{{{z=4/3}}}