How can I solve this sum?

What should be added to twice the rational number-7/3 to get 3/7

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Solution

Let the number added be y

2 ( -7/3) + y = 3/7

2 (-7/3) + y = 3/7

-14/3 + y =3/7

y = 3/7 + 14/3

y = 9/21 + 98/21 (LCM=21)

y = 107/21

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\frac{- 7}{3}

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A number is added to a rational number $\frac{- 7}{3}$ to get $\frac{3}{7}$ . Write the correct equation representing the above statement.

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