Question 343437
{{{P+W=200}}}
{{{P-W=120}}}
Add the equations together,
{{{P+W+P-W=200+120}}}
{{{2P=320}}}
{{{highlight(P=160)}}}mph
Then use either equation to solve for {{{W}}}.
{{{160+W=200}}}
{{{highlight(W=40)}}}mph