Răspuns :
a+b = 275
a+a+b = 357
a+275 =357
a=357 -275
a=82
82 +b=275
b=275 -82
b=193
a+a+b = 357
a+275 =357
a=357 -275
a=82
82 +b=275
b=275 -82
b=193
a+b=275
a+a+b=357
2a+b=357
b=357-2a
a+357-2a=275
a-2a=275-357
-a=-82 |×(-1)
a=82
b=357-2a
b=357-2×82
b=357-164
b=193
a+a+b=357
2a+b=357
b=357-2a
a+357-2a=275
a-2a=275-357
-a=-82 |×(-1)
a=82
b=357-2a
b=357-2×82
b=357-164
b=193