If you drove to Austin at 70 miles per hour and returned at

If you drove to Austin at 70 miles per hour and returned at 50 miles per hour. What is the distance driven to Austin if total driving time was 7.2 hours?

I\'ve tried;
D (distance)=R (rate/MPH)*T (time)
D=R*T
D=70+50*7.2
D=864

T = D / R

7.2 = (d / 70) + (d / 50)

7.2 (350) = 5d + 7d

2520 = 12d

210 = d

$If you drove to Austin at 70 miles per hour and returned at 50 miles per hour. What is the distance driven to Austin if total driving time was 7.2 hours? I\'ve$

If you drove to Austin at 70 miles per hour and returned at

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