Question 831187
Let {{{ x }}} = gallons of 16% ethanol 
gasoline to be added
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{{{ .16x / ( x + 2000 ) = .14 }}}
{{{ .16x = .14*( x + 2000 ) }}}
{{{ .16x = .14x + 280 }}}
{{{ .02x = 280 }}}
{{{ x = 14000 }}}
14,000 gallons of 16% ethanol gasoline must be added