Răspuns :
( a+ b ) x 6 = 882
a + b = 882 : 6
a +b = 147
a - b = 13 => a = b + 13
b + 13 + b = 147
2b = 147 - 13
2b = 134
b = 134 : 2
b = 67
a = 67 + 13
a = 80
a + b = 882 : 6
a +b = 147
a - b = 13 => a = b + 13
b + 13 + b = 147
2b = 147 - 13
2b = 134
b = 134 : 2
b = 67
a = 67 + 13
a = 80