Răspuns :

a=(6+4)*2 -9

a=10*2-9

a=20-9

a=11

b=(8*5):8+30

b=40:8+30

b=5+30

b=35

a < b
11 <35
a=(6+24:6)*2-81:9
=(6+4)*2-81:9
=10*2-9
=20-9
=11
b=(64:8*5):8+6*5
=(8*5):8+6*5
=40:8+30
=5+30
=35

a<b.....11<35....adevarat
a=b...11=35...fals
a>b....11>35...fals