Question

find value of 'a'......

Answer 1

5ay=2x-9
5*a(-4)=2*(-3)-9
-20a=-6-9
a=-15/-20
a=3/4

Answer 2

$\blue{\huge{\boxed{\star\: Solution \: \star}}}$


===> 5ay = 2x - 9

===>
$\boxed{x = - 3}$

===>
$\red{ \boxed{y = - 4}}$

==>

$\green{put \: value \: in \: equation}$


===> 5 ( a ) ( -4 ) = 2 (-3) - 9

===> -20a = -6 -9

==> -20a = -15

$a = \frac{15}{20}$
===>

$\blue{ \boxed{ \underline{a = \frac{3}{4} }}}$