Răspuns :
a-1356-2452=4191
a-1356=4191+2452
a-1356=6.643
a=6.643+1356
a=7.999
b-2356-1848=1578
b-2356=1578+1848
b-2356=3426
b=3426+2356
b=5782
c-4856=1353+3567
c-4856=4.920
c=4920+4856
c=9.776
a-1356=4191+2452
a-1356=6.643
a=6.643+1356
a=7.999
b-2356-1848=1578
b-2356=1578+1848
b-2356=3426
b=3426+2356
b=5782
c-4856=1353+3567
c-4856=4.920
c=4920+4856
c=9.776