# Flying

The airplane from Prague to Bratislava was flying at a speed of 60 km/h less and back by 70 km/h greater than the original speed. What was the original speed if the plane returned to Prague according to the timetable?

v =  840 km/h

### Step-by-step explanation:

Equation is non-linear.

## Calculation:

Equation is linear and have one solution:

-10v+8400=0

x=840

Our simple equation calculator calculates it. Did you find an error or inaccuracy? Feel free to write us. Thank you!

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