Răspuns :
A+b=56
a>b
A:b=3r4 => a=3b+4
3b+4+b=56 |-4
3b+b=52
4b=52 |:4
B=13
A=3*13+4
A=39+4
A=43
a + b = 56
a : b = 3 rest 4 ⇒ a = 3b + 4
3b + 4 + b = 56
4b + 4 = 56
4b = 56 - 4
4b = 52
b = 52 : 4
b = 13
a = 56 - 13
a = 43
a : b = 3 rest 4 ⇒ a = 3b + 4
3b + 4 + b = 56
4b + 4 = 56
4b = 56 - 4
4b = 52
b = 52 : 4
b = 13
a = 56 - 13
a = 43