Question 1054436
{{{3x-5+x+1/2=90}}}
{{{4x-9/2=90}}}
{{{4x=90-9/2}}}
{{{4x=180/2-9/2}}}
{{{4x=171/2}}}
{{{x=171/8}}}
So {{{x=27}}} is not correct in this case.