Question

19. What should be added to twice of the rational number -7/5 to get 3/7
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Answer 1

Answer:

32/35

Step-by-step explanation:

the no twice required =2x

$2x + ( \frac { - 7}{5}) \: \: \: \: \frac{3}{7} \\ \\ \frac{3}{7} - \frac{ - 7}{5} \\ \frac{15 + 49}{35} \: \: \: \: \: \: 2x \\ \frac{64}{35} \: \: \: \: \: 2x$

x = 64/70

x= 32/35