Question 1119091
<pre>
P         A
Alan   2x+5
Bob     2x
Cindy   x
Sum   20
</pre>

{{{2x+5+2x+x=20}}}

{{{5x+5=20}}}

{{{5x=15}}}

{{{highlight(x=3)}}} 3*2=6 {{{highlight(Bob=6)}}} 6+5=11 {{{highlight(Alan=11)}}}