Question 675747
Let {{{ x }}} = the rest of the sales staff's sales
given:
{{{ x + x + 400 = 1600 }}}
{{{ 2x = 1600 - 400 }}}
{{{ 2x = 1200 }}}
{{{ x = 600 }}}
The rest of the sales staff sold $600
check:
The salesman sold
{{{ 600 + 400 = 1000 }}}
Sales staff + salesman = {{{ 600 + 1000 = 1600 }}}
OK