(4×8+8:a)+6×3:9-(16-4×4)=72:9+5×6
(32+8:a)+18:9-(16-16)=8+30
(32+8:a)+2-0=38
(32+8:a)+2=38
32+8:a=38-2
32+8:a=36
8:a=36-32
8:a=4
a=8:4
a=2