Question 1203379
<pre>
           INITIAL    GAVE AWAY
Leo          e         e-x-3
Isaac        i         i-x
TOTAL        95
</pre>


{{{system(i-x=x-5,e-x-3=i-x+2,e+i=95)}}}


--

{{{system(i-2x=-5,e-i=5,e+i=95)}}}


{{{i=2x-5}}}

-
{{{system(e-(2x-5)=5,e+2x-5=95)}}}


{{{system(e-2x+5=5,e+2x=100)}}}


{{{system(e=2x,e+2x=100)}}}


substitute for e.

{{{2x+2x=100}}}

{{{x=25}}}--------------------------