Question 1027905
{{{system(q=d-3,q=y=quarters,0.25q+0.1d=2.75)}}}


{{{0.25y+0.1d=2.75}}}-------this is probably what you want but it is not simplified.
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{{{d=q+3}}}
{{{d=y+3}}}
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{{{0.25y+0.1(y+3)=2.75}}}
{{{0.25y+0.1y+0.3=2.75}}}
{{{0.35y=2.45}}}
{{{y=245/35}}}
{{{y=(5*7*7)/(5*7)}}}
{{{highlight(y=7)}}}-------and then {{{highlight(d=10)}}}.