Question

please solve this question in maths?

Answer 1

2/5 + x = -3/5
x = -3/2 - 2/5
x = -19/10

Answer 2

and is - 19/10 is added to get -3/2
$\frac{2}{5} + a = \frac{ - 3}{2 \ } \\ \frac{2}{5} - ( - \frac{3}{2} ) = a \\ \frac{4}{ 10} + \frac{15}{10} = a \\ \frac{19}{10} = a \\ 1.9 = a$