<PRE><B>Question 39780</B>
50*X=60*(X-3) OR 50X=60X-180 OR 10X=180 OR X=18 OR 50*18=900 MILES

60(18-3) OR 60*15=900 MILES

IF IT TAKES X HOURS TO GET TO DETROIT @ 50 MILES PER HOUR THAN THE DISTANCE IS 50X

IF IT TAKES X-3 HOURS @ 60 MILES PER HOUR TO GET TO DETROIT THAN THE DISTANCE ID 60(X-3) 

SEEING AS THE DISTANCES ARE THE SAME WE SET THESE TWO FACT EQUAL THUS WE HAVE

50*X=60(X-3) OR 50X=60X-180 OR 50X-60X=-180 OR -10X=-180 OR 10X=180 OR X=180/10 OR X=18 HOURS TO DRIVE FROM TULSA TO DETROIT @ 50 MILES PER HOUR OR 18*50=900 

60 MILES PER HOUR ONLY TAKES (18-3) OR 15 HOURS THUS 60*15=900 MILES </PRE>