Question

the sum of two rational number is -4/-5.if one of the rational number is -7/20 find the others ​

Answer 1

Answer:

$= > x + ( \frac{ - 7}{2} ) = ( \frac{ - 4}{ - 5} ) \\ \\ = > \frac{2x - 7}{2} = \frac{4}{5} \\ \\ = > 10x - 35 = 8 \\ \\ = > 10x = 43 \\ \\ = > x = \frac{43}{10}$