Question 1188076
{{{system(n, n+2, n+4, n+6)}}}


{{{n+(n+2)=12+(1/2)(n+4+n+6)}}}------literally the description


{{{2n+2=12+(1/2)(2n+10)}}}

{{{4n+4=24+2n+10}}}

{{{2n+2=12+n+5}}}

{{{n=15}}}



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Integers 15, 17, 19, 21
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{{{15+17=12+(1/2)(19+21)}}}

{{{32=12+(1/2)40}}}

{{{32=12+20}}}
{{{OK}}}