Răspuns :
e*9=36...=> 72:a=36
6*b=36
40-c=36
e=36:9
e=4
a=72:36
a=2
b=36:6
b=6
c=40-36
c=4
72:2=6*6=40-4=4*9=36
36= 36 =36 =36 =36
6*b=36
40-c=36
e=36:9
e=4
a=72:36
a=2
b=36:6
b=6
c=40-36
c=4
72:2=6*6=40-4=4*9=36
36= 36 =36 =36 =36