Question 120593
Depends.


Do you mean {{{(9/2)h=-1}}} or {{{9/(2h)=-1}}}?


If the former, just multiply by the reciprocal of the fraction:


{{{(2/9)(9/2)h=-1*(2/9)}}}
{{{h=-2/9}}}


If the later, multiply both sides by 2h


{{{(9/(2h))*2h=-1*2h}}}
{{{9=-2h}}}


Then divide both sides by -2


{{{9/-2=h}}}