Question

verify this.


full explanation please​

Answer 1

Step-by-step explanation:

$- 20 + ( \frac{3}{ - 5 } + \frac{ - 7}{ - 10}) = ( - 20 + \frac{3}{ - 5}) + \frac{ - 7}{ - 10} \\ - 20 + ( \frac{6 - 7}{ - 10}) = ( \frac{100 + 3}{ - 5}) + \frac{ - 7}{ - 10} \\ - 20 + (\frac{ - 1}{ - 10}) = ( \frac{103}{ - 5}) + \frac{ - 7}{ - 10} \\ - 20 + \frac{1}{ 10} = \frac{103}{ - 5} + \frac{7}{10} \\ \frac{ - 200 + 1}{10} = \frac{206 - 7}{ - 10} \\ \frac{ - 199}{10} = \frac{199}{ - 10} \\ 1990 = 1990$