Question 1074653
{{{M=2S}}}
{{{M=W+4}}}
{{{M+W+S=111}}}
Substituting,
{{{M+(M-4)+M/2=111}}}
{{{(5/2)M-4=111}}}
{{{(5/2)M=115}}}
Solve for M then use the equations to solve for S and W.