Question 1070046
1.{{{L+S=110}}}
.
.
.
{{{50L+35S=4600}}}
2.{{{10L+7S=920}}}
Multiply eq. 1 by 10 and subtract it from eq. 2,
{{{10L+7S-10L-10S=920-1110}}}
{{{-3S=-180}}}
Now solve for S, then use either equation to solve for L.