Question 97776
{{{3/8+p/8=25/8}}}

Multiply by 8 on both sides of the equation

{{{(3/8)*8 + (p/8)*8 =(25/8)*8}}}
{{{3 + p = 25 }}}
{{{ p = 25 -3 }}} Subtract 3 from both sides
{{{p=22}}}