Question

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

Answer 1

Answer:

$\frac{58}{21}$

Step-by-step explanation:

$x + \frac{-7}{3} = \frac{3}{7}$

$x = \frac{3}{7} - \frac{-7}{3}$

Making the Denominator the same

$x = \frac{3*3}{7*3} - \frac{-7*7}{3*7}$

Multiplying with LCM

$x = \frac{9}{21} - \frac{-49}{21}$

Solving the Fractions

$x = \frac{9-(-49)}{21}$

$x = \frac{9+49}{21}$

$x = \frac{58}{21}$

Therefore the answer is $\frac{58}{21}$