Răspuns :
a + b = 403
a = 18b +23
18b + 23 + b = 403
19b = 403 - 23
b = 380 : 19
b = 20
a = 18 * 20 + 23
a = 383
a = 18b +23
18b + 23 + b = 403
19b = 403 - 23
b = 380 : 19
b = 20
a = 18 * 20 + 23
a = 383
n + m= 403
n= 18b +23
18m + 23 + m = 403
19m = 403 - 23
m = 380 : 19
m = 20
n= 18 * 20 + 23
n = 383
n= 18b +23
18m + 23 + m = 403
19m = 403 - 23
m = 380 : 19
m = 20
n= 18 * 20 + 23
n = 383