Question 627681
Let {{{ n }}} = number of daily bus passes used
Paul's cost is
{{{ 7 + 1.5n  = 29.5 }}}
{{{ 1.5n = 29.5 - 7 }}}
{{{ 1.5n = 22.5 }}}
{{{ n = 15 }}}
He bought 15 daily bus passes