Question 1165553
<pre>
Jose               x-2
Alyssa              x
Ricardo            2(x-2)
David              2*2(x-2)
SUM                 68
</pre>


{{{(x-2)+x+2(x-2)+4(x-2)=68}}}

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Question asks for, as variables used here, {{{2(x-2)}}}.