Question 946422
{{{(A+B+C+D+E)/5=8}}}
{{{A+B+C+D+E=40}}}
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{{{(A+B+C+D)/4=7}}}
{{{A+B+C+D=28}}}
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{{{(A+B+C+D+E)-(A+B+C+D)=40-28}}}
{{{E=12}}}