Question 1015061
Let {{{ x }}} = John's age today
{{{ x - 8 = (3/4)*x + 3 }}}
Multiply both sides by {{{ 4 }}}
{{{ 4x - 32 = 3x + 12 }}}
{{{ x = 44 }}}
He is 44 today
check:
{{{ x - 8 = (3/4)*x + 3 }}}
{{{ 44 - 8 = (3/4)*44 + 3 }}}
{{{ 36 = 33 + 3 }}}
{{{ 36 = 36 }}}
OK