Răspuns:
a-27=68
a=68+27
a=95
82-c=36
c=82-36
c=46
d-35=19
d=35+19
d=44
e-43=38
e=43+38
e=81
74-g=19
g=74-19
g=55
c-56=27
c=56-27
c=29