Question 802903
Let {{{ x }}} = the hours he worked on friday
{{{ x - 3 }}} = the hours he worked on saturday
--------------
{{{ x + x - 3 = 10 }}}
{{{ 2x - 3 = 10 }}}
{{{ 2x = 13 }}}
{{{ x = 6.5 }}}
He worked 6.5 hours on friday
----------
check:
{{{ x - 3 = 6.5 - 3 }}}
{{{ x - 3 = 3.5 }}}
{{{ 6.5 + 3.5 = 10 }}}
OK