Question 964037
{{{4P+2R=10}}}
1.{{{2P+R=10}}}
.
.
.
{{{6P+3R=16}}}
2.{{{2P+R=16/3}}}
From eq. 1 and eq. 2,
{{{10=16/3}}}
which is not true so there is no solution.
Check your problem setup and repost.