Question 1199919
{{{system(n+d+q=105,5n+10d+25q=1075)}}}


{{{system(n+d+q=105,n+2d+5q=215)}}}
That can get you started.


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Going through this a little bit, assuming d is some constant k, and substituting for n, an equation found is  {{{k+4q=110}}}.  Maybe this helps.