Răspuns :
(a+b):2=104
==>a+b=208
a:b=3 rest 4
a=3b+4
3b+4+b=208 | -4
3b+b=204
4b=204
b=204:4
b=51
a=51·3+4 sau 208-51=157
a=157
==>a+b=208
a:b=3 rest 4
a=3b+4
3b+4+b=208 | -4
3b+b=204
4b=204
b=204:4
b=51
a=51·3+4 sau 208-51=157
a=157