Question

WU all II).
i) IfDx=-30, Dy=40 and D=-5 are the valus of the determinants for certain simultaneous equation in x and
y. Find x.​

Answer 1

Step-by-step explanation:

Step-by-step explanation:

Explanation:

Step-by-step explanation:

${\huge{\underbrace{\overbrace{\color{purple}{why?\: \: \: }}}}}$