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family has 2 cars
1st fuel efficiency=15 mpg
2nd fuel efficiency=35 mpg
total distance=1450 miles
total consumption=50 gal
lets get the gallons consumed by 1st car as x
then the gallons consumed by 2nd car=50-x
so we can write
so 50-x=35 g
the gas consumed by 1st car=15 gallons
the gas consumed by 2nd car=35 gallons
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