Răspuns :
A-b=46
a : b =5 rest 2 => a= b x 5 + 2
b x 5 +2 - b =46
4b = 46-2
b = 44 : 4
b=11
a-11 =46
a= 46 + 11
a= 57
a : b =5 rest 2 => a= b x 5 + 2
b x 5 +2 - b =46
4b = 46-2
b = 44 : 4
b=11
a-11 =46
a= 46 + 11
a= 57