Question 1196287
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x + (x+0.1) = 6.3


2x = 6.3 - 0.1

2x = 6.2

 x = 6.2/2 = 3.1.


<U>ANSWER</U>.  3.1 million cars were recycled in 1st year. 

         3.2 million cars were recycled in 2nd year.
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Solved.