Question 643959
Let {{{ x }}} = liters when full
given:
{{{ (7/8)*x - 15 = (2/3)*x }}}
Multiply both sides by {{{ 24 }}}
{{{ 21x - 15*24 = 16x }}}
{{{ 5x = 15*24 }}}
{{{ x = 3*24 }}}
{{{ x = 72 }}}
It holds 72 liters when full