Question 986622
 {{{(6b +18)/b^2 + 1/b = 3/b }}}
{{{ (6b +18)/b^2  = 2/b }}}
Multiply both sides by {{{b^2}}}.
{{{6b+18=2b}}}
{{{4b=-18}}}
{{{b=-18/4}}}
{{{b=-9/2}}}