Question

please answer fast please answer fast please answer fast please answer fast with explanation ​

Answer 1

by multiplying 21/20 and -4/7 we get -3/5

Answer 2

$\frac{ - 4}{7} x = \frac{ - 3}{5} \\ x = \frac{ - 3}{5} \times \frac{7}{ - 4} = \frac{ - 21}{ - 20} = \frac{21}{20}$