Question

(40:5+16):a=9:3 Ajutore nu stiu

Answer 1

(40:5+16):a=3/x40,
5+16:a=120-5,
16:a=115,
a=115x16,
a=1840.

Answer 2

$(40:5+16):a=9:3$
$(8+16):a=3$
$24:a=3$
$a=24:3$
$a=8$