Question 944538
"l", bad choice of variable.


{{{system(2s+L=8L,L=s+2*2)}}}


{{{system(2s+L=8L,L=s+4)}}}


{{{system(2s=7L, L=s+4)}}}


Substitute for L.
{{{2s=7(s+4)}}}
{{{2s=7s+28}}}
{{{-5x=28}}}--------This seems impossible, being {{{x=-28/5}}}.


Your equations are faulty.  Recheck your problem description, and then repost the help request giving the full problem description and question, word-for-word.   .